Finding the Third Proportional to 17,850 and 42,208.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,850 : 42,208.50 = 42,208.50 : x
2. Step 2: Convert to fraction form
   17,850/42,208.50 = 42,208.50/x
3. Step 3: Cross multiply
   17,850x = 42,208.50 × 42,208.50
4. Step 4: Simplify right side
   17,850x = 1,781,557,472.25
5. Step 5: Solve for x
   x = 1,781,557,472.25/17,850
6. Step 6: Final answer
   x = 99,807.14