Finding the Third Proportional to 67,992.75 and 147,664.69

Step by Step Solution

1. Step 1: Write the proportion equation
   67,992.75 : 147,664.69 = 147,664.69 : x
2. Step 2: Convert to fraction form
   67,992.75/147,664.69 = 147,664.69/x
3. Step 3: Cross multiply
   67,992.75x = 147,664.69 × 147,664.69
4. Step 4: Simplify right side
   67,992.75x = 21,804,859,934.47
5. Step 5: Solve for x
   x = 21,804,859,934.47/67,992.75
6. Step 6: Final answer
   x = 320,693.90