Finding the Third Proportional to 42,370.50 and 62,139

Step by Step Solution

1. Step 1: Write the proportion equation
   42,370.50 : 62,139 = 62,139 : x
2. Step 2: Convert to fraction form
   42,370.50/62,139 = 62,139/x
3. Step 3: Cross multiply
   42,370.50x = 62,139 × 62,139
4. Step 4: Simplify right side
   42,370.50x = 3,861,255,321
5. Step 5: Solve for x
   x = 3,861,255,321/42,370.50
6. Step 6: Final answer
   x = 91,130.75