Finding the Third Proportional to 426,002.50 and 911,847.50

Step by Step Solution

1. Step 1: Write the proportion equation
   426,002.50 : 911,847.50 = 911,847.50 : x
2. Step 2: Convert to fraction form
   426,002.50/911,847.50 = 911,847.50/x
3. Step 3: Cross multiply
   426,002.50x = 911,847.50 × 911,847.50
4. Step 4: Simplify right side
   426,002.50x = 831,465,863,256.25
5. Step 5: Solve for x
   x = 831,465,863,256.25/426,002.50
6. Step 6: Final answer
   x = 1,951,786.35