Finding the Third Proportional to 20,878,752 and 31,942,140

Step by Step Solution

1. Step 1: Write the proportion equation
   20,878,752 : 31,942,140 = 31,942,140 : x
2. Step 2: Convert to fraction form
   20,878,752/31,942,140 = 31,942,140/x
3. Step 3: Cross multiply
   20,878,752x = 31,942,140 × 31,942,140
4. Step 4: Simplify right side
   20,878,752x = 1,020,300,307,779,600
5. Step 5: Solve for x
   x = 1,020,300,307,779,600/20,878,752
6. Step 6: Final answer
   x = 48,867,878.11