Finding the Third Proportional to 362,209.50 and 786,690

Step by Step Solution

1. Step 1: Write the proportion equation
   362,209.50 : 786,690 = 786,690 : x
2. Step 2: Convert to fraction form
   362,209.50/786,690 = 786,690/x
3. Step 3: Cross multiply
   362,209.50x = 786,690 × 786,690
4. Step 4: Simplify right side
   362,209.50x = 618,881,156,100
5. Step 5: Solve for x
   x = 618,881,156,100/362,209.50
6. Step 6: Final answer
   x = 1,708,627.62