Finding the Third Proportional to 520,872 and 1,115,472

Step by Step Solution

1. Step 1: Write the proportion equation
   520,872 : 1,115,472 = 1,115,472 : x
2. Step 2: Convert to fraction form
   520,872/1,115,472 = 1,115,472/x
3. Step 3: Cross multiply
   520,872x = 1,115,472 × 1,115,472
4. Step 4: Simplify right side
   520,872x = 1,244,277,782,784
5. Step 5: Solve for x
   x = 1,244,277,782,784/520,872
6. Step 6: Final answer
   x = 2,388,836.00