Finding the Third Proportional to 429,948 and 911,148.75

Step by Step Solution

1. Step 1: Write the proportion equation
   429,948 : 911,148.75 = 911,148.75 : x
2. Step 2: Convert to fraction form
   429,948/911,148.75 = 911,148.75/x
3. Step 3: Cross multiply
   429,948x = 911,148.75 × 911,148.75
4. Step 4: Simplify right side
   429,948x = 830,192,044,626.56
5. Step 5: Solve for x
   x = 830,192,044,626.56/429,948
6. Step 6: Final answer
   x = 1,930,912.68