Finding the Third Proportional to 35,712 and 54,931.50

Step by Step Solution

1. Step 1: Write the proportion equation
   35,712 : 54,931.50 = 54,931.50 : x
2. Step 2: Convert to fraction form
   35,712/54,931.50 = 54,931.50/x
3. Step 3: Cross multiply
   35,712x = 54,931.50 × 54,931.50
4. Step 4: Simplify right side
   35,712x = 3,017,469,692.25
5. Step 5: Solve for x
   x = 3,017,469,692.25/35,712
6. Step 6: Final answer
   x = 84,494.56