Finding the Third Proportional to 721,248 and 1,142,077.50

Step by Step Solution

1. Step 1: Write the proportion equation
   721,248 : 1,142,077.50 = 1,142,077.50 : x
2. Step 2: Convert to fraction form
   721,248/1,142,077.50 = 1,142,077.50/x
3. Step 3: Cross multiply
   721,248x = 1,142,077.50 × 1,142,077.50
4. Step 4: Simplify right side
   721,248x = 1,304,341,016,006.25
5. Step 5: Solve for x
   x = 1,304,341,016,006.25/721,248
6. Step 6: Final answer
   x = 1,808,450.10