Finding the Third Proportional to 13,443,662 and 20,663,877

Step by Step Solution

1. Step 1: Write the proportion equation
   13,443,662 : 20,663,877 = 20,663,877 : x
2. Step 2: Convert to fraction form
   13,443,662/20,663,877 = 20,663,877/x
3. Step 3: Cross multiply
   13,443,662x = 20,663,877 × 20,663,877
4. Step 4: Simplify right side
   13,443,662x = 426,995,812,671,129
5. Step 5: Solve for x
   x = 426,995,812,671,129/13,443,662
6. Step 6: Final answer
   x = 31,761,867.61