Finding the Third Proportional to 561,087 and 847,523.25

Step by Step Solution

1. Step 1: Write the proportion equation
   561,087 : 847,523.25 = 847,523.25 : x
2. Step 2: Convert to fraction form
   561,087/847,523.25 = 847,523.25/x
3. Step 3: Cross multiply
   561,087x = 847,523.25 × 847,523.25
4. Step 4: Simplify right side
   561,087x = 718,295,659,290.56
5. Step 5: Solve for x
   x = 718,295,659,290.56/561,087
6. Step 6: Final answer
   x = 1,280,185.89