Finding the Third Proportional to 42,942.50 and 63,131

Step by Step Solution

1. Step 1: Write the proportion equation
   42,942.50 : 63,131 = 63,131 : x
2. Step 2: Convert to fraction form
   42,942.50/63,131 = 63,131/x
3. Step 3: Cross multiply
   42,942.50x = 63,131 × 63,131
4. Step 4: Simplify right side
   42,942.50x = 3,985,523,161
5. Step 5: Solve for x
   x = 3,985,523,161/42,942.50
6. Step 6: Final answer
   x = 92,810.69