Finding the Third Proportional to 42,130 and 65,730

Step by Step Solution

1. Step 1: Write the proportion equation
   42,130 : 65,730 = 65,730 : x
2. Step 2: Convert to fraction form
   42,130/65,730 = 65,730/x
3. Step 3: Cross multiply
   42,130x = 65,730 × 65,730
4. Step 4: Simplify right side
   42,130x = 4,320,432,900
5. Step 5: Solve for x
   x = 4,320,432,900/42,130
6. Step 6: Final answer
   x = 102,550.03