Finding the Third Proportional to 847,158.75 and 1,290,595.78

Step by Step Solution

1. Step 1: Write the proportion equation
   847,158.75 : 1,290,595.78 = 1,290,595.78 : x
2. Step 2: Convert to fraction form
   847,158.75/1,290,595.78 = 1,290,595.78/x
3. Step 3: Cross multiply
   847,158.75x = 1,290,595.78 × 1,290,595.78
4. Step 4: Simplify right side
   847,158.75x = 1,665,637,470,580.30
5. Step 5: Solve for x
   x = 1,665,637,470,580.30/847,158.75
6. Step 6: Final answer
   x = 1,966,145.63