Finding the Third Proportional to 877,392 and 1,913,436

Step by Step Solution

1. Step 1: Write the proportion equation
   877,392 : 1,913,436 = 1,913,436 : x
2. Step 2: Convert to fraction form
   877,392/1,913,436 = 1,913,436/x
3. Step 3: Cross multiply
   877,392x = 1,913,436 × 1,913,436
4. Step 4: Simplify right side
   877,392x = 3,661,237,326,096
5. Step 5: Solve for x
   x = 3,661,237,326,096/877,392
6. Step 6: Final answer
   x = 4,172,863.81