Finding the Third Proportional to 426,333 and 911,737.50

Step by Step Solution

1. Step 1: Write the proportion equation
   426,333 : 911,737.50 = 911,737.50 : x
2. Step 2: Convert to fraction form
   426,333/911,737.50 = 911,737.50/x
3. Step 3: Cross multiply
   426,333x = 911,737.50 × 911,737.50
4. Step 4: Simplify right side
   426,333x = 831,265,268,906.25
5. Step 5: Solve for x
   x = 831,265,268,906.25/426,333
6. Step 6: Final answer
   x = 1,949,802.78