Finding the Third Proportional to 811,063,580 and 1,665,124,051

Step by Step Solution

1. Step 1: Write the proportion equation
   811,063,580 : 1,665,124,051 = 1,665,124,051 : x
2. Step 2: Convert to fraction form
   811,063,580/1,665,124,051 = 1,665,124,051/x
3. Step 3: Cross multiply
   811,063,580x = 1,665,124,051 × 1,665,124,051
4. Step 4: Simplify right side
   811,063,580x = 2,772,638,105,218,650,624
5. Step 5: Solve for x
   x = 2,772,638,105,218,650,624/811,063,580
6. Step 6: Final answer
   x = 3,418,521,276.99