Finding the Third Proportional to 45,920 and 69,520

Step by Step Solution

1. Step 1: Write the proportion equation
   45,920 : 69,520 = 69,520 : x
2. Step 2: Convert to fraction form
   45,920/69,520 = 69,520/x
3. Step 3: Cross multiply
   45,920x = 69,520 × 69,520
4. Step 4: Simplify right side
   45,920x = 4,833,030,400
5. Step 5: Solve for x
   x = 4,833,030,400/45,920
6. Step 6: Final answer
   x = 105,248.92