Finding the Third Proportional to 35,629.50 and 53,680.50

Step by Step Solution

1. Step 1: Write the proportion equation
   35,629.50 : 53,680.50 = 53,680.50 : x
2. Step 2: Convert to fraction form
   35,629.50/53,680.50 = 53,680.50/x
3. Step 3: Cross multiply
   35,629.50x = 53,680.50 × 53,680.50
4. Step 4: Simplify right side
   35,629.50x = 2,881,596,080.25
5. Step 5: Solve for x
   x = 2,881,596,080.25/35,629.50
6. Step 6: Final answer
   x = 80,876.69