Finding the Third Proportional to 69,327.56 and 149,338.69

Step by Step Solution

1. Step 1: Write the proportion equation
   69,327.56 : 149,338.69 = 149,338.69 : x
2. Step 2: Convert to fraction form
   69,327.56/149,338.69 = 149,338.69/x
3. Step 3: Cross multiply
   69,327.56x = 149,338.69 × 149,338.69
4. Step 4: Simplify right side
   69,327.56x = 22,302,043,584.22
5. Step 5: Solve for x
   x = 22,302,043,584.22/69,327.56
6. Step 6: Final answer
   x = 321,690.87