Finding the Third Proportional to 763,990,281 and 1,636,892,730

Step by Step Solution

1. Step 1: Write the proportion equation
   763,990,281 : 1,636,892,730 = 1,636,892,730 : x
2. Step 2: Convert to fraction form
   763,990,281/1,636,892,730 = 1,636,892,730/x
3. Step 3: Cross multiply
   763,990,281x = 1,636,892,730 × 1,636,892,730
4. Step 4: Simplify right side
   763,990,281x = 2,679,417,809,526,853,120
5. Step 5: Solve for x
   x = 2,679,417,809,526,853,120/763,990,281
6. Step 6: Final answer
   x = 3,507,135,988.72