Finding the Third Proportional to 42,387.75 and 65,530.13

Step by Step Solution

1. Step 1: Write the proportion equation
   42,387.75 : 65,530.13 = 65,530.13 : x
2. Step 2: Convert to fraction form
   42,387.75/65,530.13 = 65,530.13/x
3. Step 3: Cross multiply
   42,387.75x = 65,530.13 × 65,530.13
4. Step 4: Simplify right side
   42,387.75x = 4,294,197,282.52
5. Step 5: Solve for x
   x = 4,294,197,282.52/42,387.75
6. Step 6: Final answer
   x = 101,307.51