Finding the Third Proportional to 42,470 and 63,811

Step by Step Solution

1. Step 1: Write the proportion equation
   42,470 : 63,811 = 63,811 : x
2. Step 2: Convert to fraction form
   42,470/63,811 = 63,811/x
3. Step 3: Cross multiply
   42,470x = 63,811 × 63,811
4. Step 4: Simplify right side
   42,470x = 4,071,843,721
5. Step 5: Solve for x
   x = 4,071,843,721/42,470
6. Step 6: Final answer
   x = 95,875.76