Finding the Third Proportional to 48,494 and 65,490

Step by Step Solution

1. Step 1: Write the proportion equation
   48,494 : 65,490 = 65,490 : x
2. Step 2: Convert to fraction form
   48,494/65,490 = 65,490/x
3. Step 3: Cross multiply
   48,494x = 65,490 × 65,490
4. Step 4: Simplify right side
   48,494x = 4,288,940,100
5. Step 5: Solve for x
   x = 4,288,940,100/48,494
6. Step 6: Final answer
   x = 88,442.70