Finding the Third Proportional to 198,075 and 297,139.50

Step by Step Solution

1. Step 1: Write the proportion equation
   198,075 : 297,139.50 = 297,139.50 : x
2. Step 2: Convert to fraction form
   198,075/297,139.50 = 297,139.50/x
3. Step 3: Cross multiply
   198,075x = 297,139.50 × 297,139.50
4. Step 4: Simplify right side
   198,075x = 88,291,882,460.25
5. Step 5: Solve for x
   x = 88,291,882,460.25/198,075
6. Step 6: Final answer
   x = 445,749.75