Finding the Third Proportional to 30,888 and 67,560

Step by Step Solution

1. Step 1: Write the proportion equation
   30,888 : 67,560 = 67,560 : x
2. Step 2: Convert to fraction form
   30,888/67,560 = 67,560/x
3. Step 3: Cross multiply
   30,888x = 67,560 × 67,560
4. Step 4: Simplify right side
   30,888x = 4,564,353,600
5. Step 5: Solve for x
   x = 4,564,353,600/30,888
6. Step 6: Final answer
   x = 147,771.10