Finding the Third Proportional to 387,081.75 and 836,442

Step by Step Solution

1. Step 1: Write the proportion equation
   387,081.75 : 836,442 = 836,442 : x
2. Step 2: Convert to fraction form
   387,081.75/836,442 = 836,442/x
3. Step 3: Cross multiply
   387,081.75x = 836,442 × 836,442
4. Step 4: Simplify right side
   387,081.75x = 699,635,219,364
5. Step 5: Solve for x
   x = 699,635,219,364/387,081.75
6. Step 6: Final answer
   x = 1,807,461.14