Finding the Third Proportional to 20,878,808 and 31,942,245

Step by Step Solution

1. Step 1: Write the proportion equation
   20,878,808 : 31,942,245 = 31,942,245 : x
2. Step 2: Convert to fraction form
   20,878,808/31,942,245 = 31,942,245/x
3. Step 3: Cross multiply
   20,878,808x = 31,942,245 × 31,942,245
4. Step 4: Simplify right side
   20,878,808x = 1,020,307,015,640,025
5. Step 5: Solve for x
   x = 1,020,307,015,640,025/20,878,808
6. Step 6: Final answer
   x = 48,868,068.31