Finding the Third Proportional to 251,356.50 and 538,693.88

Step by Step Solution

1. Step 1: Write the proportion equation
   251,356.50 : 538,693.88 = 538,693.88 : x
2. Step 2: Convert to fraction form
   251,356.50/538,693.88 = 538,693.88/x
3. Step 3: Cross multiply
   251,356.50x = 538,693.88 × 538,693.88
4. Step 4: Simplify right side
   251,356.50x = 290,191,090,962.52
5. Step 5: Solve for x
   x = 290,191,090,962.52/251,356.50
6. Step 6: Final answer
   x = 1,154,500.05