Finding the Third Proportional to 43,280 and 65,730

Step by Step Solution

1. Step 1: Write the proportion equation
   43,280 : 65,730 = 65,730 : x
2. Step 2: Convert to fraction form
   43,280/65,730 = 65,730/x
3. Step 3: Cross multiply
   43,280x = 65,730 × 65,730
4. Step 4: Simplify right side
   43,280x = 4,320,432,900
5. Step 5: Solve for x
   x = 4,320,432,900/43,280
6. Step 6: Final answer
   x = 99,825.16