Finding the Third Proportional to 680,472 and 1,005,187.50

Step by Step Solution

1. Step 1: Write the proportion equation
   680,472 : 1,005,187.50 = 1,005,187.50 : x
2. Step 2: Convert to fraction form
   680,472/1,005,187.50 = 1,005,187.50/x
3. Step 3: Cross multiply
   680,472x = 1,005,187.50 × 1,005,187.50
4. Step 4: Simplify right side
   680,472x = 1,010,401,910,156.25
5. Step 5: Solve for x
   x = 1,010,401,910,156.25/680,472
6. Step 6: Final answer
   x = 1,484,854.50