Finding the Third Proportional to 786,231 and 1,178,118

Step by Step Solution

1. Step 1: Write the proportion equation
   786,231 : 1,178,118 = 1,178,118 : x
2. Step 2: Convert to fraction form
   786,231/1,178,118 = 1,178,118/x
3. Step 3: Cross multiply
   786,231x = 1,178,118 × 1,178,118
4. Step 4: Simplify right side
   786,231x = 1,387,962,021,924
5. Step 5: Solve for x
   x = 1,387,962,021,924/786,231
6. Step 6: Final answer
   x = 1,765,336.17