Finding the Third Proportional to 400,411.50 and 834,037.50

Step by Step Solution

1. Step 1: Write the proportion equation
   400,411.50 : 834,037.50 = 834,037.50 : x
2. Step 2: Convert to fraction form
   400,411.50/834,037.50 = 834,037.50/x
3. Step 3: Cross multiply
   400,411.50x = 834,037.50 × 834,037.50
4. Step 4: Simplify right side
   400,411.50x = 695,618,551,406.25
5. Step 5: Solve for x
   x = 695,618,551,406.25/400,411.50
6. Step 6: Final answer
   x = 1,737,259.17