Finding the Third Proportional to 356,588.50 and 840,922.50

Step by Step Solution

1. Step 1: Write the proportion equation
   356,588.50 : 840,922.50 = 840,922.50 : x
2. Step 2: Convert to fraction form
   356,588.50/840,922.50 = 840,922.50/x
3. Step 3: Cross multiply
   356,588.50x = 840,922.50 × 840,922.50
4. Step 4: Simplify right side
   356,588.50x = 707,150,651,006.25
5. Step 5: Solve for x
   x = 707,150,651,006.25/356,588.50
6. Step 6: Final answer
   x = 1,983,099.99