Finding the Third Proportional to 427,281.75 and 661,392

Step by Step Solution

1. Step 1: Write the proportion equation
   427,281.75 : 661,392 = 661,392 : x
2. Step 2: Convert to fraction form
   427,281.75/661,392 = 661,392/x
3. Step 3: Cross multiply
   427,281.75x = 661,392 × 661,392
4. Step 4: Simplify right side
   427,281.75x = 437,439,377,664
5. Step 5: Solve for x
   x = 437,439,377,664/427,281.75
6. Step 6: Final answer
   x = 1,023,772.67