Finding the Third Proportional to 728,150 and 1,139,746

Step by Step Solution

1. Step 1: Write the proportion equation
   728,150 : 1,139,746 = 1,139,746 : x
2. Step 2: Convert to fraction form
   728,150/1,139,746 = 1,139,746/x
3. Step 3: Cross multiply
   728,150x = 1,139,746 × 1,139,746
4. Step 4: Simplify right side
   728,150x = 1,299,020,944,516
5. Step 5: Solve for x
   x = 1,299,020,944,516/728,150
6. Step 6: Final answer
   x = 1,784,001.85