Finding the Third Proportional to 371,038.50 and 813,091.50

Step by Step Solution

1. Step 1: Write the proportion equation
   371,038.50 : 813,091.50 = 813,091.50 : x
2. Step 2: Convert to fraction form
   371,038.50/813,091.50 = 813,091.50/x
3. Step 3: Cross multiply
   371,038.50x = 813,091.50 × 813,091.50
4. Step 4: Simplify right side
   371,038.50x = 661,117,787,372.25
5. Step 5: Solve for x
   x = 661,117,787,372.25/371,038.50
6. Step 6: Final answer
   x = 1,781,803.74