Finding the Third Proportional to 48,512 and 72,470

Step by Step Solution

1. Step 1: Write the proportion equation
   48,512 : 72,470 = 72,470 : x
2. Step 2: Convert to fraction form
   48,512/72,470 = 72,470/x
3. Step 3: Cross multiply
   48,512x = 72,470 × 72,470
4. Step 4: Simplify right side
   48,512x = 5,251,900,900
5. Step 5: Solve for x
   x = 5,251,900,900/48,512
6. Step 6: Final answer
   x = 108,259.83