Finding the Third Proportional to 359,527.50 and 786,703.50

Step by Step Solution

1. Step 1: Write the proportion equation
   359,527.50 : 786,703.50 = 786,703.50 : x
2. Step 2: Convert to fraction form
   359,527.50/786,703.50 = 786,703.50/x
3. Step 3: Cross multiply
   359,527.50x = 786,703.50 × 786,703.50
4. Step 4: Simplify right side
   359,527.50x = 618,902,396,912.25
5. Step 5: Solve for x
   x = 618,902,396,912.25/359,527.50
6. Step 6: Final answer
   x = 1,721,432.71