Finding the Third Proportional to 77,223.50 and 123,329.50

Step by Step Solution

1. Step 1: Write the proportion equation
   77,223.50 : 123,329.50 = 123,329.50 : x
2. Step 2: Convert to fraction form
   77,223.50/123,329.50 = 123,329.50/x
3. Step 3: Cross multiply
   77,223.50x = 123,329.50 × 123,329.50
4. Step 4: Simplify right side
   77,223.50x = 15,210,165,570.25
5. Step 5: Solve for x
   x = 15,210,165,570.25/77,223.50
6. Step 6: Final answer
   x = 196,962.91