Finding the Third Proportional to 13,438,687 and 20,752,111.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,438,687 : 20,752,111.50 = 20,752,111.50 : x
2. Step 2: Convert to fraction form
   13,438,687/20,752,111.50 = 20,752,111.50/x
3. Step 3: Cross multiply
   13,438,687x = 20,752,111.50 × 20,752,111.50
4. Step 4: Simplify right side
   13,438,687x = 430,650,131,708,432.25
5. Step 5: Solve for x
   x = 430,650,131,708,432.25/13,438,687
6. Step 6: Final answer
   x = 32,045,551.15