Finding the Third Proportional to 782,822 and 1,212,112

Step by Step Solution

1. Step 1: Write the proportion equation
   782,822 : 1,212,112 = 1,212,112 : x
2. Step 2: Convert to fraction form
   782,822/1,212,112 = 1,212,112/x
3. Step 3: Cross multiply
   782,822x = 1,212,112 × 1,212,112
4. Step 4: Simplify right side
   782,822x = 1,469,215,500,544
5. Step 5: Solve for x
   x = 1,469,215,500,544/782,822
6. Step 6: Final answer
   x = 1,876,819.38