Finding the Third Proportional to 426,345.75 and 911,772

Step by Step Solution

1. Step 1: Write the proportion equation
   426,345.75 : 911,772 = 911,772 : x
2. Step 2: Convert to fraction form
   426,345.75/911,772 = 911,772/x
3. Step 3: Cross multiply
   426,345.75x = 911,772 × 911,772
4. Step 4: Simplify right side
   426,345.75x = 831,328,179,984
5. Step 5: Solve for x
   x = 831,328,179,984/426,345.75
6. Step 6: Final answer
   x = 1,949,892.03