Finding the Third Proportional to 69,393.25 and 149,112

Step by Step Solution

1. Step 1: Write the proportion equation
   69,393.25 : 149,112 = 149,112 : x
2. Step 2: Convert to fraction form
   69,393.25/149,112 = 149,112/x
3. Step 3: Cross multiply
   69,393.25x = 149,112 × 149,112
4. Step 4: Simplify right side
   69,393.25x = 22,234,388,544
5. Step 5: Solve for x
   x = 22,234,388,544/69,393.25
6. Step 6: Final answer
   x = 320,411.40