Finding the Third Proportional to 819,723,890.50 and 1,259,185,666

Step by Step Solution

1. Step 1: Write the proportion equation
   819,723,890.50 : 1,259,185,666 = 1,259,185,666 : x
2. Step 2: Convert to fraction form
   819,723,890.50/1,259,185,666 = 1,259,185,666/x
3. Step 3: Cross multiply
   819,723,890.50x = 1,259,185,666 × 1,259,185,666
4. Step 4: Simplify right side
   819,723,890.50x = 1,585,548,541,459,863,552
5. Step 5: Solve for x
   x = 1,585,548,541,459,863,552/819,723,890.50
6. Step 6: Final answer
   x = 1,934,247,079.82