Finding the Third Proportional to 811,063,606 and 1,665,124,103

Step by Step Solution

1. Step 1: Write the proportion equation
   811,063,606 : 1,665,124,103 = 1,665,124,103 : x
2. Step 2: Convert to fraction form
   811,063,606/1,665,124,103 = 1,665,124,103/x
3. Step 3: Cross multiply
   811,063,606x = 1,665,124,103 × 1,665,124,103
4. Step 4: Simplify right side
   811,063,606x = 2,772,638,278,391,554,560
5. Step 5: Solve for x
   x = 2,772,638,278,391,554,560/811,063,606
6. Step 6: Final answer
   x = 3,418,521,380.91