Finding the Third Proportional to 564,388 and 1,231,600

Step by Step Solution

1. Step 1: Write the proportion equation
   564,388 : 1,231,600 = 1,231,600 : x
2. Step 2: Convert to fraction form
   564,388/1,231,600 = 1,231,600/x
3. Step 3: Cross multiply
   564,388x = 1,231,600 × 1,231,600
4. Step 4: Simplify right side
   564,388x = 1,516,838,560,000
5. Step 5: Solve for x
   x = 1,516,838,560,000/564,388
6. Step 6: Final answer
   x = 2,687,581.17