Finding the Third Proportional to 426,916.50 and 914,362.50

Step by Step Solution

1. Step 1: Write the proportion equation
   426,916.50 : 914,362.50 = 914,362.50 : x
2. Step 2: Convert to fraction form
   426,916.50/914,362.50 = 914,362.50/x
3. Step 3: Cross multiply
   426,916.50x = 914,362.50 × 914,362.50
4. Step 4: Simplify right side
   426,916.50x = 836,058,781,406.25
5. Step 5: Solve for x
   x = 836,058,781,406.25/426,916.50
6. Step 6: Final answer
   x = 1,958,366.05