Finding the Third Proportional to 13,443,676 and 20,663,896

Step by Step Solution

1. Step 1: Write the proportion equation
   13,443,676 : 20,663,896 = 20,663,896 : x
2. Step 2: Convert to fraction form
   13,443,676/20,663,896 = 20,663,896/x
3. Step 3: Cross multiply
   13,443,676x = 20,663,896 × 20,663,896
4. Step 4: Simplify right side
   13,443,676x = 426,996,597,898,816
5. Step 5: Solve for x
   x = 426,996,597,898,816/13,443,676
6. Step 6: Final answer
   x = 31,761,892.94