Finding the Third Proportional to 389,122 and 852,054

Step by Step Solution

1. Step 1: Write the proportion equation
   389,122 : 852,054 = 852,054 : x
2. Step 2: Convert to fraction form
   389,122/852,054 = 852,054/x
3. Step 3: Cross multiply
   389,122x = 852,054 × 852,054
4. Step 4: Simplify right side
   389,122x = 725,996,018,916
5. Step 5: Solve for x
   x = 725,996,018,916/389,122
6. Step 6: Final answer
   x = 1,865,728.53