Finding the Third Proportional to 235,111.50 and 353,191.50

Step by Step Solution

1. Step 1: Write the proportion equation
   235,111.50 : 353,191.50 = 353,191.50 : x
2. Step 2: Convert to fraction form
   235,111.50/353,191.50 = 353,191.50/x
3. Step 3: Cross multiply
   235,111.50x = 353,191.50 × 353,191.50
4. Step 4: Simplify right side
   235,111.50x = 124,744,235,672.25
5. Step 5: Solve for x
   x = 124,744,235,672.25/235,111.50
6. Step 6: Final answer
   x = 530,574.79