Finding the Third Proportional to 48,454 and 72,685

Step by Step Solution

1. Step 1: Write the proportion equation
   48,454 : 72,685 = 72,685 : x
2. Step 2: Convert to fraction form
   48,454/72,685 = 72,685/x
3. Step 3: Cross multiply
   48,454x = 72,685 × 72,685
4. Step 4: Simplify right side
   48,454x = 5,283,109,225
5. Step 5: Solve for x
   x = 5,283,109,225/48,454
6. Step 6: Final answer
   x = 109,033.50