Finding the Third Proportional to 527,451 and 817,237.50

Step by Step Solution

1. Step 1: Write the proportion equation
   527,451 : 817,237.50 = 817,237.50 : x
2. Step 2: Convert to fraction form
   527,451/817,237.50 = 817,237.50/x
3. Step 3: Cross multiply
   527,451x = 817,237.50 × 817,237.50
4. Step 4: Simplify right side
   527,451x = 667,877,131,406.25
5. Step 5: Solve for x
   x = 667,877,131,406.25/527,451
6. Step 6: Final answer
   x = 1,266,235.41