Finding the Third Proportional to 51,064 and 74,878

Step by Step Solution

1. Step 1: Write the proportion equation
   51,064 : 74,878 = 74,878 : x
2. Step 2: Convert to fraction form
   51,064/74,878 = 74,878/x
3. Step 3: Cross multiply
   51,064x = 74,878 × 74,878
4. Step 4: Simplify right side
   51,064x = 5,606,714,884
5. Step 5: Solve for x
   x = 5,606,714,884/51,064
6. Step 6: Final answer
   x = 109,797.80