Finding the Third Proportional to 2,131,258 and 4,565,781

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131,258 : 4,565,781 = 4,565,781 : x
2. Step 2: Convert to fraction form
   2,131,258/4,565,781 = 4,565,781/x
3. Step 3: Cross multiply
   2,131,258x = 4,565,781 × 4,565,781
4. Step 4: Simplify right side
   2,131,258x = 20,846,356,139,961
5. Step 5: Solve for x
   x = 20,846,356,139,961/2,131,258
6. Step 6: Final answer
   x = 9,781,244.76