Finding the Third Proportional to 73,978.88 and 159,782.63

Step by Step Solution

1. Step 1: Write the proportion equation
   73,978.88 : 159,782.63 = 159,782.63 : x
2. Step 2: Convert to fraction form
   73,978.88/159,782.63 = 159,782.63/x
3. Step 3: Cross multiply
   73,978.88x = 159,782.63 × 159,782.63
4. Step 4: Simplify right side
   73,978.88x = 25,530,487,251.89
5. Step 5: Solve for x
   x = 25,530,487,251.89/73,978.88
6. Step 6: Final answer
   x = 345,105.10