Finding the Third Proportional to 141,222 and 207,121.50

Step by Step Solution

1. Step 1: Write the proportion equation
   141,222 : 207,121.50 = 207,121.50 : x
2. Step 2: Convert to fraction form
   141,222/207,121.50 = 207,121.50/x
3. Step 3: Cross multiply
   141,222x = 207,121.50 × 207,121.50
4. Step 4: Simplify right side
   141,222x = 42,899,315,762.25
5. Step 5: Solve for x
   x = 42,899,315,762.25/141,222
6. Step 6: Final answer
   x = 303,772.19