Finding the Third Proportional to 877,282 and 1,913,216

Step by Step Solution

1. Step 1: Write the proportion equation
   877,282 : 1,913,216 = 1,913,216 : x
2. Step 2: Convert to fraction form
   877,282/1,913,216 = 1,913,216/x
3. Step 3: Cross multiply
   877,282x = 1,913,216 × 1,913,216
4. Step 4: Simplify right side
   877,282x = 3,660,395,462,656
5. Step 5: Solve for x
   x = 3,660,395,462,656/877,282
6. Step 6: Final answer
   x = 4,172,427.41