Finding the Third Proportional to 786,972 and 1,189,818

Step by Step Solution

1. Step 1: Write the proportion equation
   786,972 : 1,189,818 = 1,189,818 : x
2. Step 2: Convert to fraction form
   786,972/1,189,818 = 1,189,818/x
3. Step 3: Cross multiply
   786,972x = 1,189,818 × 1,189,818
4. Step 4: Simplify right side
   786,972x = 1,415,666,873,124
5. Step 5: Solve for x
   x = 1,415,666,873,124/786,972
6. Step 6: Final answer
   x = 1,798,878.32