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Finding the Third Proportional to 299,398.50 and 646,773.75

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Solution

The third proportional to 299,398.50 and 646,773.75 is: 1,397,188.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,398.50 : 646,773.75 = 646,773.75 : x
  2. Step 2: Convert to fraction form
    299,398.50/646,773.75 = 646,773.75/x
  3. Step 3: Cross multiply
    299,398.50x = 646,773.75 × 646,773.75
  4. Step 4: Simplify right side
    299,398.50x = 418,316,283,689.06
  5. Step 5: Solve for x
    x = 418,316,283,689.06/299,398.50
  6. Step 6: Final answer
    x = 1,397,188.98

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