Finding the Third Proportional to 877,178 and 1,921,878

Step by Step Solution

1. Step 1: Write the proportion equation
   877,178 : 1,921,878 = 1,921,878 : x
2. Step 2: Convert to fraction form
   877,178/1,921,878 = 1,921,878/x
3. Step 3: Cross multiply
   877,178x = 1,921,878 × 1,921,878
4. Step 4: Simplify right side
   877,178x = 3,693,615,046,884
5. Step 5: Solve for x
   x = 3,693,615,046,884/877,178
6. Step 6: Final answer
   x = 4,210,793.07