Finding the Third Proportional to 693,665,397 and 1,636,926,205.50

Step by Step Solution

1. Step 1: Write the proportion equation
   693,665,397 : 1,636,926,205.50 = 1,636,926,205.50 : x
2. Step 2: Convert to fraction form
   693,665,397/1,636,926,205.50 = 1,636,926,205.50/x
3. Step 3: Cross multiply
   693,665,397x = 1,636,926,205.50 × 1,636,926,205.50
4. Step 4: Simplify right side
   693,665,397x = 2,679,527,402,252,628,480
5. Step 5: Solve for x
   x = 2,679,527,402,252,628,480/693,665,397
6. Step 6: Final answer
   x = 3,862,852,917.04