Finding the Third Proportional to 69,336 and 149,359.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,336 : 149,359.50 = 149,359.50 : x
2. Step 2: Convert to fraction form
   69,336/149,359.50 = 149,359.50/x
3. Step 3: Cross multiply
   69,336x = 149,359.50 × 149,359.50
4. Step 4: Simplify right side
   69,336x = 22,308,260,240.25
5. Step 5: Solve for x
   x = 22,308,260,240.25/69,336
6. Step 6: Final answer
   x = 321,741.38