Finding the Third Proportional to 428,859.50 and 914,718

Step by Step Solution

1. Step 1: Write the proportion equation
   428,859.50 : 914,718 = 914,718 : x
2. Step 2: Convert to fraction form
   428,859.50/914,718 = 914,718/x
3. Step 3: Cross multiply
   428,859.50x = 914,718 × 914,718
4. Step 4: Simplify right side
   428,859.50x = 836,709,019,524
5. Step 5: Solve for x
   x = 836,709,019,524/428,859.50
6. Step 6: Final answer
   x = 1,951,009.64