Finding the Third Proportional to 784,872 and 1,215,036

Step by Step Solution

1. Step 1: Write the proportion equation
   784,872 : 1,215,036 = 1,215,036 : x
2. Step 2: Convert to fraction form
   784,872/1,215,036 = 1,215,036/x
3. Step 3: Cross multiply
   784,872x = 1,215,036 × 1,215,036
4. Step 4: Simplify right side
   784,872x = 1,476,312,481,296
5. Step 5: Solve for x
   x = 1,476,312,481,296/784,872
6. Step 6: Final answer
   x = 1,880,959.55