Finding the Third Proportional to 51,052.78 and 71,407.83

Step by Step Solution

1. Step 1: Write the proportion equation
   51,052.78 : 71,407.83 = 71,407.83 : x
2. Step 2: Convert to fraction form
   51,052.78/71,407.83 = 71,407.83/x
3. Step 3: Cross multiply
   51,052.78x = 71,407.83 × 71,407.83
4. Step 4: Simplify right side
   51,052.78x = 5,099,077,917.53
5. Step 5: Solve for x
   x = 5,099,077,917.53/51,052.78
6. Step 6: Final answer
   x = 99,878.55