Finding the Third Proportional to 509,122 and 1,005,392

Step by Step Solution

1. Step 1: Write the proportion equation
   509,122 : 1,005,392 = 1,005,392 : x
2. Step 2: Convert to fraction form
   509,122/1,005,392 = 1,005,392/x
3. Step 3: Cross multiply
   509,122x = 1,005,392 × 1,005,392
4. Step 4: Simplify right side
   509,122x = 1,010,813,073,664
5. Step 5: Solve for x
   x = 1,010,813,073,664/509,122
6. Step 6: Final answer
   x = 1,985,404.43