Finding the Third Proportional to 73,239.19 and 152,308.69

Step by Step Solution

1. Step 1: Write the proportion equation
   73,239.19 : 152,308.69 = 152,308.69 : x
2. Step 2: Convert to fraction form
   73,239.19/152,308.69 = 152,308.69/x
3. Step 3: Cross multiply
   73,239.19x = 152,308.69 × 152,308.69
4. Step 4: Simplify right side
   73,239.19x = 23,197,936,287.97
5. Step 5: Solve for x
   x = 23,197,936,287.97/73,239.19
6. Step 6: Final answer
   x = 316,742.13