Finding the Third Proportional to 869,940 and 1,916,472

Step by Step Solution

1. Step 1: Write the proportion equation
   869,940 : 1,916,472 = 1,916,472 : x
2. Step 2: Convert to fraction form
   869,940/1,916,472 = 1,916,472/x
3. Step 3: Cross multiply
   869,940x = 1,916,472 × 1,916,472
4. Step 4: Simplify right side
   869,940x = 3,672,864,926,784
5. Step 5: Solve for x
   x = 3,672,864,926,784/869,940
6. Step 6: Final answer
   x = 4,221,974.99