Finding the Third Proportional to 9,140,900,399 and 12,872,402,048

Step by Step Solution

1. Step 1: Write the proportion equation
   9,140,900,399 : 12,872,402,048 = 12,872,402,048 : x
2. Step 2: Convert to fraction form
   9,140,900,399/12,872,402,048 = 12,872,402,048/x
3. Step 3: Cross multiply
   9,140,900,399x = 12,872,402,048 × 12,872,402,048
4. Step 4: Simplify right side
   9,140,900,399x = 165,698,734,485,354,577,920
5. Step 5: Solve for x
   x = 165,698,734,485,354,577,920/9,140,900,399
6. Step 6: Final answer
   x = 18,127,178,642.43