Finding the Third Proportional to 811,064,896.88 and 1,665,126,396

Step by Step Solution

1. Step 1: Write the proportion equation
   811,064,896.88 : 1,665,126,396 = 1,665,126,396 : x
2. Step 2: Convert to fraction form
   811,064,896.88/1,665,126,396 = 1,665,126,396/x
3. Step 3: Cross multiply
   811,064,896.88x = 1,665,126,396 × 1,665,126,396
4. Step 4: Simplify right side
   811,064,896.88x = 2,772,645,914,655,948,800
5. Step 5: Solve for x
   x = 2,772,645,914,655,948,800/811,064,896.88
6. Step 6: Final answer
   x = 3,418,525,355.17