Finding the Third Proportional to 30,642.75 and 62,581.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,642.75 : 62,581.50 = 62,581.50 : x
2. Step 2: Convert to fraction form
   30,642.75/62,581.50 = 62,581.50/x
3. Step 3: Cross multiply
   30,642.75x = 62,581.50 × 62,581.50
4. Step 4: Simplify right side
   30,642.75x = 3,916,444,142.25
5. Step 5: Solve for x
   x = 3,916,444,142.25/30,642.75
6. Step 6: Final answer
   x = 127,809.81