Finding the Third Proportional to 389,106 and 852,025.50

Step by Step Solution

1. Step 1: Write the proportion equation
   389,106 : 852,025.50 = 852,025.50 : x
2. Step 2: Convert to fraction form
   389,106/852,025.50 = 852,025.50/x
3. Step 3: Cross multiply
   389,106x = 852,025.50 × 852,025.50
4. Step 4: Simplify right side
   389,106x = 725,947,452,650.25
5. Step 5: Solve for x
   x = 725,947,452,650.25/389,106
6. Step 6: Final answer
   x = 1,865,680.44