Finding the Third Proportional to 763,987,291.88 and 1,636,886,819.25

Step by Step Solution

1. Step 1: Write the proportion equation
   763,987,291.88 : 1,636,886,819.25 = 1,636,886,819.25 : x
2. Step 2: Convert to fraction form
   763,987,291.88/1,636,886,819.25 = 1,636,886,819.25/x
3. Step 3: Cross multiply
   763,987,291.88x = 1,636,886,819.25 × 1,636,886,819.25
4. Step 4: Simplify right side
   763,987,291.88x = 2,679,398,459,034,382,336
5. Step 5: Solve for x
   x = 2,679,398,459,034,382,336/763,987,291.88
6. Step 6: Final answer
   x = 3,507,124,382.21