Finding the Third Proportional to 16,600 and 34,900

Step by Step Solution

1. Step 1: Write the proportion equation
   16,600 : 34,900 = 34,900 : x
2. Step 2: Convert to fraction form
   16,600/34,900 = 34,900/x
3. Step 3: Cross multiply
   16,600x = 34,900 × 34,900
4. Step 4: Simplify right side
   16,600x = 1,218,010,000
5. Step 5: Solve for x
   x = 1,218,010,000/16,600
6. Step 6: Final answer
   x = 73,374.10