Finding the Third Proportional to 195,316.31 and 428,023.69

Step by Step Solution

1. Step 1: Write the proportion equation
   195,316.31 : 428,023.69 = 428,023.69 : x
2. Step 2: Convert to fraction form
   195,316.31/428,023.69 = 428,023.69/x
3. Step 3: Cross multiply
   195,316.31x = 428,023.69 × 428,023.69
4. Step 4: Simplify right side
   195,316.31x = 183,204,277,061.10
5. Step 5: Solve for x
   x = 183,204,277,061.10/195,316.31
6. Step 6: Final answer
   x = 937,987.59