Finding the Third Proportional to 582,558 and 787,072

Step by Step Solution

1. Step 1: Write the proportion equation
   582,558 : 787,072 = 787,072 : x
2. Step 2: Convert to fraction form
   582,558/787,072 = 787,072/x
3. Step 3: Cross multiply
   582,558x = 787,072 × 787,072
4. Step 4: Simplify right side
   582,558x = 619,482,333,184
5. Step 5: Solve for x
   x = 619,482,333,184/582,558
6. Step 6: Final answer
   x = 1,063,383.10