Finding the Third Proportional to 693,665,125 and 1,636,925,538

Step by Step Solution

1. Step 1: Write the proportion equation
   693,665,125 : 1,636,925,538 = 1,636,925,538 : x
2. Step 2: Convert to fraction form
   693,665,125/1,636,925,538 = 1,636,925,538/x
3. Step 3: Cross multiply
   693,665,125x = 1,636,925,538 × 1,636,925,538
4. Step 4: Simplify right side
   693,665,125x = 2,679,525,216,956,589,568
5. Step 5: Solve for x
   x = 2,679,525,216,956,589,568/693,665,125
6. Step 6: Final answer
   x = 3,862,851,281.38