Finding the Third Proportional to 869,948 and 1,916,488

Step by Step Solution

1. Step 1: Write the proportion equation
   869,948 : 1,916,488 = 1,916,488 : x
2. Step 2: Convert to fraction form
   869,948/1,916,488 = 1,916,488/x
3. Step 3: Cross multiply
   869,948x = 1,916,488 × 1,916,488
4. Step 4: Simplify right side
   869,948x = 3,672,926,254,144
5. Step 5: Solve for x
   x = 3,672,926,254,144/869,948
6. Step 6: Final answer
   x = 4,222,006.66