Finding the Third Proportional to 20,878,725 and 31,942,111.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,878,725 : 31,942,111.50 = 31,942,111.50 : x
2. Step 2: Convert to fraction form
   20,878,725/31,942,111.50 = 31,942,111.50/x
3. Step 3: Cross multiply
   20,878,725x = 31,942,111.50 × 31,942,111.50
4. Step 4: Simplify right side
   20,878,725x = 1,020,298,487,078,432.25
5. Step 5: Solve for x
   x = 1,020,298,487,078,432.25/20,878,725
6. Step 6: Final answer
   x = 48,867,854.10