Finding the Third Proportional to 387,451 and 836,066

Step by Step Solution

1. Step 1: Write the proportion equation
   387,451 : 836,066 = 836,066 : x
2. Step 2: Convert to fraction form
   387,451/836,066 = 836,066/x
3. Step 3: Cross multiply
   387,451x = 836,066 × 836,066
4. Step 4: Simplify right side
   387,451x = 699,006,356,356
5. Step 5: Solve for x
   x = 699,006,356,356/387,451
6. Step 6: Final answer
   x = 1,804,115.50