Finding the Third Proportional to 131,685.15 and 289,002.22

Step by Step Solution

1. Step 1: Write the proportion equation
   131,685.15 : 289,002.22 = 289,002.22 : x
2. Step 2: Convert to fraction form
   131,685.15/289,002.22 = 289,002.22/x
3. Step 3: Cross multiply
   131,685.15x = 289,002.22 × 289,002.22
4. Step 4: Simplify right side
   131,685.15x = 83,522,281,313.51
5. Step 5: Solve for x
   x = 83,522,281,313.51/131,685.15
6. Step 6: Final answer
   x = 634,257.39