Finding the Third Proportional to 48,632 and 72,840

Step by Step Solution

1. Step 1: Write the proportion equation
   48,632 : 72,840 = 72,840 : x
2. Step 2: Convert to fraction form
   48,632/72,840 = 72,840/x
3. Step 3: Cross multiply
   48,632x = 72,840 × 72,840
4. Step 4: Simplify right side
   48,632x = 5,305,665,600
5. Step 5: Solve for x
   x = 5,305,665,600/48,632
6. Step 6: Final answer
   x = 109,098.24