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Finding the Third Proportional to 89,934.75 and 138,399.75

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Solution

The third proportional to 89,934.75 and 138,399.75 is: 212,982.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,934.75 : 138,399.75 = 138,399.75 : x
  2. Step 2: Convert to fraction form
    89,934.75/138,399.75 = 138,399.75/x
  3. Step 3: Cross multiply
    89,934.75x = 138,399.75 × 138,399.75
  4. Step 4: Simplify right side
    89,934.75x = 19,154,490,800.06
  5. Step 5: Solve for x
    x = 19,154,490,800.06/89,934.75
  6. Step 6: Final answer
    x = 212,982.09

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