Finding the Third Proportional to 42,931.50 and 63,155

Step by Step Solution

1. Step 1: Write the proportion equation
   42,931.50 : 63,155 = 63,155 : x
2. Step 2: Convert to fraction form
   42,931.50/63,155 = 63,155/x
3. Step 3: Cross multiply
   42,931.50x = 63,155 × 63,155
4. Step 4: Simplify right side
   42,931.50x = 3,988,554,025
5. Step 5: Solve for x
   x = 3,988,554,025/42,931.50
6. Step 6: Final answer
   x = 92,905.07