Finding the Third Proportional to 29,285 and 63,870

Step by Step Solution

1. Step 1: Write the proportion equation
   29,285 : 63,870 = 63,870 : x
2. Step 2: Convert to fraction form
   29,285/63,870 = 63,870/x
3. Step 3: Cross multiply
   29,285x = 63,870 × 63,870
4. Step 4: Simplify right side
   29,285x = 4,079,376,900
5. Step 5: Solve for x
   x = 4,079,376,900/29,285
6. Step 6: Final answer
   x = 139,299.19