Finding the Third Proportional to 705,271.50 and 991,017

Step by Step Solution

1. Step 1: Write the proportion equation
   705,271.50 : 991,017 = 991,017 : x
2. Step 2: Convert to fraction form
   705,271.50/991,017 = 991,017/x
3. Step 3: Cross multiply
   705,271.50x = 991,017 × 991,017
4. Step 4: Simplify right side
   705,271.50x = 982,114,694,289
5. Step 5: Solve for x
   x = 982,114,694,289/705,271.50
6. Step 6: Final answer
   x = 1,392,534.21