Finding the Third Proportional to 112,990.50 and 235,342.69

Step by Step Solution

1. Step 1: Write the proportion equation
   112,990.50 : 235,342.69 = 235,342.69 : x
2. Step 2: Convert to fraction form
   112,990.50/235,342.69 = 235,342.69/x
3. Step 3: Cross multiply
   112,990.50x = 235,342.69 × 235,342.69
4. Step 4: Simplify right side
   112,990.50x = 55,386,180,559.72
5. Step 5: Solve for x
   x = 55,386,180,559.72/112,990.50
6. Step 6: Final answer
   x = 490,184.40