Finding the Third Proportional to 455,780 and 707,562

Step by Step Solution

1. Step 1: Write the proportion equation
   455,780 : 707,562 = 707,562 : x
2. Step 2: Convert to fraction form
   455,780/707,562 = 707,562/x
3. Step 3: Cross multiply
   455,780x = 707,562 × 707,562
4. Step 4: Simplify right side
   455,780x = 500,643,983,844
5. Step 5: Solve for x
   x = 500,643,983,844/455,780
6. Step 6: Final answer
   x = 1,098,433.42