Finding the Third Proportional to 31,161 and 43,723.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,161 : 43,723.50 = 43,723.50 : x
2. Step 2: Convert to fraction form
   31,161/43,723.50 = 43,723.50/x
3. Step 3: Cross multiply
   31,161x = 43,723.50 × 43,723.50
4. Step 4: Simplify right side
   31,161x = 1,911,744,452.25
5. Step 5: Solve for x
   x = 1,911,744,452.25/31,161
6. Step 6: Final answer
   x = 61,350.55