Finding the Third Proportional to 7,780,234 and 12,500,716

Step by Step Solution

1. Step 1: Write the proportion equation
   7,780,234 : 12,500,716 = 12,500,716 : x
2. Step 2: Convert to fraction form
   7,780,234/12,500,716 = 12,500,716/x
3. Step 3: Cross multiply
   7,780,234x = 12,500,716 × 12,500,716
4. Step 4: Simplify right side
   7,780,234x = 156,267,900,512,656
5. Step 5: Solve for x
   x = 156,267,900,512,656/7,780,234
6. Step 6: Final answer
   x = 20,085,244.29