Finding the Third Proportional to 17,890.50 and 38,858.25

Step by Step Solution

1. Step 1: Write the proportion equation
   17,890.50 : 38,858.25 = 38,858.25 : x
2. Step 2: Convert to fraction form
   17,890.50/38,858.25 = 38,858.25/x
3. Step 3: Cross multiply
   17,890.50x = 38,858.25 × 38,858.25
4. Step 4: Simplify right side
   17,890.50x = 1,509,963,593.06
5. Step 5: Solve for x
   x = 1,509,963,593.06/17,890.50
6. Step 6: Final answer
   x = 84,400.30