Finding the Third Proportional to 13,329,815,310 and 28,665,721,979

Step by Step Solution

1. Step 1: Write the proportion equation
   13,329,815,310 : 28,665,721,979 = 28,665,721,979 : x
2. Step 2: Convert to fraction form
   13,329,815,310/28,665,721,979 = 28,665,721,979/x
3. Step 3: Cross multiply
   13,329,815,310x = 28,665,721,979 × 28,665,721,979
4. Step 4: Simplify right side
   13,329,815,310x = 821,723,616,577,323,663,360
5. Step 5: Solve for x
   x = 821,723,616,577,323,663,360/13,329,815,310
6. Step 6: Final answer
   x = 61,645,536,525.99