Finding the Third Proportional to 713,541.75 and 978,457.50

Step by Step Solution

1. Step 1: Write the proportion equation
   713,541.75 : 978,457.50 = 978,457.50 : x
2. Step 2: Convert to fraction form
   713,541.75/978,457.50 = 978,457.50/x
3. Step 3: Cross multiply
   713,541.75x = 978,457.50 × 978,457.50
4. Step 4: Simplify right side
   713,541.75x = 957,379,079,306.25
5. Step 5: Solve for x
   x = 957,379,079,306.25/713,541.75
6. Step 6: Final answer
   x = 1,341,728.19