Finding the Third Proportional to 389,100 and 852,010.50

Step by Step Solution

1. Step 1: Write the proportion equation
   389,100 : 852,010.50 = 852,010.50 : x
2. Step 2: Convert to fraction form
   389,100/852,010.50 = 852,010.50/x
3. Step 3: Cross multiply
   389,100x = 852,010.50 × 852,010.50
4. Step 4: Simplify right side
   389,100x = 725,921,892,110.25
5. Step 5: Solve for x
   x = 725,921,892,110.25/389,100
6. Step 6: Final answer
   x = 1,865,643.52