Finding the Third Proportional to 39,603 and 57,622.50

Step by Step Solution

1. Step 1: Write the proportion equation
   39,603 : 57,622.50 = 57,622.50 : x
2. Step 2: Convert to fraction form
   39,603/57,622.50 = 57,622.50/x
3. Step 3: Cross multiply
   39,603x = 57,622.50 × 57,622.50
4. Step 4: Simplify right side
   39,603x = 3,320,352,506.25
5. Step 5: Solve for x
   x = 3,320,352,506.25/39,603
6. Step 6: Final answer
   x = 83,840.93