Finding the Third Proportional to 198,038.50 and 298,003

Step by Step Solution

1. Step 1: Write the proportion equation
   198,038.50 : 298,003 = 298,003 : x
2. Step 2: Convert to fraction form
   198,038.50/298,003 = 298,003/x
3. Step 3: Cross multiply
   198,038.50x = 298,003 × 298,003
4. Step 4: Simplify right side
   198,038.50x = 88,805,788,009
5. Step 5: Solve for x
   x = 88,805,788,009/198,038.50
6. Step 6: Final answer
   x = 448,426.89