Finding the Third Proportional to 31,859.16 and 74,408.20

Step by Step Solution

1. Step 1: Write the proportion equation
   31,859.16 : 74,408.20 = 74,408.20 : x
2. Step 2: Convert to fraction form
   31,859.16/74,408.20 = 74,408.20/x
3. Step 3: Cross multiply
   31,859.16x = 74,408.20 × 74,408.20
4. Step 4: Simplify right side
   31,859.16x = 5,536,580,692.29
5. Step 5: Solve for x
   x = 5,536,580,692.29/31,859.16
6. Step 6: Final answer
   x = 173,783.03