Finding the Third Proportional to 133,069.50 and 272,349

Step by Step Solution

1. Step 1: Write the proportion equation
   133,069.50 : 272,349 = 272,349 : x
2. Step 2: Convert to fraction form
   133,069.50/272,349 = 272,349/x
3. Step 3: Cross multiply
   133,069.50x = 272,349 × 272,349
4. Step 4: Simplify right side
   133,069.50x = 74,173,977,801
5. Step 5: Solve for x
   x = 74,173,977,801/133,069.50
6. Step 6: Final answer
   x = 557,407.80