Finding the Third Proportional to 9,136,564 and 12,854,910

Step by Step Solution

1. Step 1: Write the proportion equation
   9,136,564 : 12,854,910 = 12,854,910 : x
2. Step 2: Convert to fraction form
   9,136,564/12,854,910 = 12,854,910/x
3. Step 3: Cross multiply
   9,136,564x = 12,854,910 × 12,854,910
4. Step 4: Simplify right side
   9,136,564x = 165,248,711,108,100
5. Step 5: Solve for x
   x = 165,248,711,108,100/9,136,564
6. Step 6: Final answer
   x = 18,086,526.96