Finding the Third Proportional to 13,443,676 and 20,663,898

Step by Step Solution

1. Step 1: Write the proportion equation
   13,443,676 : 20,663,898 = 20,663,898 : x
2. Step 2: Convert to fraction form
   13,443,676/20,663,898 = 20,663,898/x
3. Step 3: Cross multiply
   13,443,676x = 20,663,898 × 20,663,898
4. Step 4: Simplify right side
   13,443,676x = 426,996,680,554,404
5. Step 5: Solve for x
   x = 426,996,680,554,404/13,443,676
6. Step 6: Final answer
   x = 31,761,899.09