Finding the Third Proportional to 389,041,422.50 and 853,773,092.50

Step by Step Solution

1. Step 1: Write the proportion equation
   389,041,422.50 : 853,773,092.50 = 853,773,092.50 : x
2. Step 2: Convert to fraction form
   389,041,422.50/853,773,092.50 = 853,773,092.50/x
3. Step 3: Cross multiply
   389,041,422.50x = 853,773,092.50 × 853,773,092.50
4. Step 4: Simplify right side
   389,041,422.50x = 728,928,493,477,013,504
5. Step 5: Solve for x
   x = 728,928,493,477,013,504/389,041,422.50
6. Step 6: Final answer
   x = 1,873,652,653.21