Finding the Third Proportional to 3,531.94 and 7,612.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,531.94 : 7,612.31 = 7,612.31 : x
2. Step 2: Convert to fraction form
   3,531.94/7,612.31 = 7,612.31/x
3. Step 3: Cross multiply
   3,531.94x = 7,612.31 × 7,612.31
4. Step 4: Simplify right side
   3,531.94x = 57,947,301.60
5. Step 5: Solve for x
   x = 57,947,301.60/3,531.94
6. Step 6: Final answer
   x = 16,406.66