Finding the Third Proportional to 141,891.75 and 303,061.50

Step by Step Solution

1. Step 1: Write the proportion equation
   141,891.75 : 303,061.50 = 303,061.50 : x
2. Step 2: Convert to fraction form
   141,891.75/303,061.50 = 303,061.50/x
3. Step 3: Cross multiply
   141,891.75x = 303,061.50 × 303,061.50
4. Step 4: Simplify right side
   141,891.75x = 91,846,272,782.25
5. Step 5: Solve for x
   x = 91,846,272,782.25/141,891.75
6. Step 6: Final answer
   x = 647,298.19