Finding the Third Proportional to 3,142,878 and 4,655,406

Step by Step Solution

1. Step 1: Write the proportion equation
   3,142,878 : 4,655,406 = 4,655,406 : x
2. Step 2: Convert to fraction form
   3,142,878/4,655,406 = 4,655,406/x
3. Step 3: Cross multiply
   3,142,878x = 4,655,406 × 4,655,406
4. Step 4: Simplify right side
   3,142,878x = 21,672,805,024,836
5. Step 5: Solve for x
   x = 21,672,805,024,836/3,142,878
6. Step 6: Final answer
   x = 6,895,846.74