Finding the Third Proportional to 468,849 and 726,439.50

Step by Step Solution

1. Step 1: Write the proportion equation
   468,849 : 726,439.50 = 726,439.50 : x
2. Step 2: Convert to fraction form
   468,849/726,439.50 = 726,439.50/x
3. Step 3: Cross multiply
   468,849x = 726,439.50 × 726,439.50
4. Step 4: Simplify right side
   468,849x = 527,714,347,160.25
5. Step 5: Solve for x
   x = 527,714,347,160.25/468,849
6. Step 6: Final answer
   x = 1,125,552.89