Finding the Third Proportional to 17,435.25 and 42,990.75

Step by Step Solution

1. Step 1: Write the proportion equation
   17,435.25 : 42,990.75 = 42,990.75 : x
2. Step 2: Convert to fraction form
   17,435.25/42,990.75 = 42,990.75/x
3. Step 3: Cross multiply
   17,435.25x = 42,990.75 × 42,990.75
4. Step 4: Simplify right side
   17,435.25x = 1,848,204,585.56
5. Step 5: Solve for x
   x = 1,848,204,585.56/17,435.25
6. Step 6: Final answer
   x = 106,003.91