Finding the Third Proportional to 252,391 and 539,800.50

Step by Step Solution

1. Step 1: Write the proportion equation
   252,391 : 539,800.50 = 539,800.50 : x
2. Step 2: Convert to fraction form
   252,391/539,800.50 = 539,800.50/x
3. Step 3: Cross multiply
   252,391x = 539,800.50 × 539,800.50
4. Step 4: Simplify right side
   252,391x = 291,384,579,800.25
5. Step 5: Solve for x
   x = 291,384,579,800.25/252,391
6. Step 6: Final answer
   x = 1,154,496.71