Finding the Third Proportional to 721,560 and 1,566,078.50

Step by Step Solution

1. Step 1: Write the proportion equation
   721,560 : 1,566,078.50 = 1,566,078.50 : x
2. Step 2: Convert to fraction form
   721,560/1,566,078.50 = 1,566,078.50/x
3. Step 3: Cross multiply
   721,560x = 1,566,078.50 × 1,566,078.50
4. Step 4: Simplify right side
   721,560x = 2,452,601,868,162.25
5. Step 5: Solve for x
   x = 2,452,601,868,162.25/721,560
6. Step 6: Final answer
   x = 3,399,026.93