Finding the Third Proportional to 35,908.50 and 77,146.50

Step by Step Solution

1. Step 1: Write the proportion equation
   35,908.50 : 77,146.50 = 77,146.50 : x
2. Step 2: Convert to fraction form
   35,908.50/77,146.50 = 77,146.50/x
3. Step 3: Cross multiply
   35,908.50x = 77,146.50 × 77,146.50
4. Step 4: Simplify right side
   35,908.50x = 5,951,582,462.25
5. Step 5: Solve for x
   x = 5,951,582,462.25/35,908.50
6. Step 6: Final answer
   x = 165,743.00