Finding the Third Proportional to 991,116 and 1,575,288

Step by Step Solution

1. Step 1: Write the proportion equation
   991,116 : 1,575,288 = 1,575,288 : x
2. Step 2: Convert to fraction form
   991,116/1,575,288 = 1,575,288/x
3. Step 3: Cross multiply
   991,116x = 1,575,288 × 1,575,288
4. Step 4: Simplify right side
   991,116x = 2,481,532,282,944
5. Step 5: Solve for x
   x = 2,481,532,282,944/991,116
6. Step 6: Final answer
   x = 2,503,775.83