Finding the Third Proportional to 788,554 and 1,115,786

Step by Step Solution

1. Step 1: Write the proportion equation
   788,554 : 1,115,786 = 1,115,786 : x
2. Step 2: Convert to fraction form
   788,554/1,115,786 = 1,115,786/x
3. Step 3: Cross multiply
   788,554x = 1,115,786 × 1,115,786
4. Step 4: Simplify right side
   788,554x = 1,244,978,397,796
5. Step 5: Solve for x
   x = 1,244,978,397,796/788,554
6. Step 6: Final answer
   x = 1,578,811.85