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Finding the Third Proportional to 289,217.25 and 432,543.75

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Solution

The third proportional to 289,217.25 and 432,543.75 is: 646,898.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,217.25 : 432,543.75 = 432,543.75 : x
  2. Step 2: Convert to fraction form
    289,217.25/432,543.75 = 432,543.75/x
  3. Step 3: Cross multiply
    289,217.25x = 432,543.75 × 432,543.75
  4. Step 4: Simplify right side
    289,217.25x = 187,094,095,664.06
  5. Step 5: Solve for x
    x = 187,094,095,664.06/289,217.25
  6. Step 6: Final answer
    x = 646,898.12

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