Finding the Third Proportional to 53,328 and 76,210

Step by Step Solution

1. Step 1: Write the proportion equation
   53,328 : 76,210 = 76,210 : x
2. Step 2: Convert to fraction form
   53,328/76,210 = 76,210/x
3. Step 3: Cross multiply
   53,328x = 76,210 × 76,210
4. Step 4: Simplify right side
   53,328x = 5,807,964,100
5. Step 5: Solve for x
   x = 5,807,964,100/53,328
6. Step 6: Final answer
   x = 108,910.22