Finding the Third Proportional to 690,866,742 and 1,061,366,413.50

Step by Step Solution

1. Step 1: Write the proportion equation
   690,866,742 : 1,061,366,413.50 = 1,061,366,413.50 : x
2. Step 2: Convert to fraction form
   690,866,742/1,061,366,413.50 = 1,061,366,413.50/x
3. Step 3: Cross multiply
   690,866,742x = 1,061,366,413.50 × 1,061,366,413.50
4. Step 4: Simplify right side
   690,866,742x = 1,126,498,663,705,852,928
5. Step 5: Solve for x
   x = 1,126,498,663,705,852,928/690,866,742
6. Step 6: Final answer
   x = 1,630,558,536.43