Finding the Third Proportional to 69,426.75 and 149,401.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,426.75 : 149,401.50 = 149,401.50 : x
2. Step 2: Convert to fraction form
   69,426.75/149,401.50 = 149,401.50/x
3. Step 3: Cross multiply
   69,426.75x = 149,401.50 × 149,401.50
4. Step 4: Simplify right side
   69,426.75x = 22,320,808,202.25
5. Step 5: Solve for x
   x = 22,320,808,202.25/69,426.75
6. Step 6: Final answer
   x = 321,501.56