Finding the Third Proportional to 389,054 and 846,274

Step by Step Solution

1. Step 1: Write the proportion equation
   389,054 : 846,274 = 846,274 : x
2. Step 2: Convert to fraction form
   389,054/846,274 = 846,274/x
3. Step 3: Cross multiply
   389,054x = 846,274 × 846,274
4. Step 4: Simplify right side
   389,054x = 716,179,683,076
5. Step 5: Solve for x
   x = 716,179,683,076/389,054
6. Step 6: Final answer
   x = 1,840,823.34