Finding the Third Proportional to 13,443,674 and 20,663,895

Step by Step Solution

1. Step 1: Write the proportion equation
   13,443,674 : 20,663,895 = 20,663,895 : x
2. Step 2: Convert to fraction form
   13,443,674/20,663,895 = 20,663,895/x
3. Step 3: Cross multiply
   13,443,674x = 20,663,895 × 20,663,895
4. Step 4: Simplify right side
   13,443,674x = 426,996,556,571,025
5. Step 5: Solve for x
   x = 426,996,556,571,025/13,443,674
6. Step 6: Final answer
   x = 31,761,894.60