Finding the Third Proportional to 74,148.75 and 174,870.56

Step by Step Solution

1. Step 1: Write the proportion equation
   74,148.75 : 174,870.56 = 174,870.56 : x
2. Step 2: Convert to fraction form
   74,148.75/174,870.56 = 174,870.56/x
3. Step 3: Cross multiply
   74,148.75x = 174,870.56 × 174,870.56
4. Step 4: Simplify right side
   74,148.75x = 30,579,713,629.07
5. Step 5: Solve for x
   x = 30,579,713,629.07/74,148.75
6. Step 6: Final answer
   x = 412,410.37