Finding the Third Proportional to 13,129,860 and 21,096,000

Step by Step Solution

1. Step 1: Write the proportion equation
   13,129,860 : 21,096,000 = 21,096,000 : x
2. Step 2: Convert to fraction form
   13,129,860/21,096,000 = 21,096,000/x
3. Step 3: Cross multiply
   13,129,860x = 21,096,000 × 21,096,000
4. Step 4: Simplify right side
   13,129,860x = 445,041,216,000,000
5. Step 5: Solve for x
   x = 445,041,216,000,000/13,129,860
6. Step 6: Final answer
   x = 33,895,351.21