Finding the Third Proportional to 9,140,900,397 and 12,872,402,045

Step by Step Solution

1. Step 1: Write the proportion equation
   9,140,900,397 : 12,872,402,045 = 12,872,402,045 : x
2. Step 2: Convert to fraction form
   9,140,900,397/12,872,402,045 = 12,872,402,045/x
3. Step 3: Cross multiply
   9,140,900,397x = 12,872,402,045 × 12,872,402,045
4. Step 4: Simplify right side
   9,140,900,397x = 165,698,734,408,120,172,544
5. Step 5: Solve for x
   x = 165,698,734,408,120,172,544/9,140,900,397
6. Step 6: Final answer
   x = 18,127,178,637.95