Finding the Third Proportional to 35,129.53 and 53,573.06

Step by Step Solution

1. Step 1: Write the proportion equation
   35,129.53 : 53,573.06 = 53,573.06 : x
2. Step 2: Convert to fraction form
   35,129.53/53,573.06 = 53,573.06/x
3. Step 3: Cross multiply
   35,129.53x = 53,573.06 × 53,573.06
4. Step 4: Simplify right side
   35,129.53x = 2,870,073,025.63
5. Step 5: Solve for x
   x = 2,870,073,025.63/35,129.53
6. Step 6: Final answer
   x = 81,699.72