Finding the Third Proportional to 455,562 and 989,763.75

Step by Step Solution

1. Step 1: Write the proportion equation
   455,562 : 989,763.75 = 989,763.75 : x
2. Step 2: Convert to fraction form
   455,562/989,763.75 = 989,763.75/x
3. Step 3: Cross multiply
   455,562x = 989,763.75 × 989,763.75
4. Step 4: Simplify right side
   455,562x = 979,632,280,814.06
5. Step 5: Solve for x
   x = 979,632,280,814.06/455,562
6. Step 6: Final answer
   x = 2,150,381.90