Finding the Third Proportional to 34,940 and 74,020

Step by Step Solution

1. Step 1: Write the proportion equation
   34,940 : 74,020 = 74,020 : x
2. Step 2: Convert to fraction form
   34,940/74,020 = 74,020/x
3. Step 3: Cross multiply
   34,940x = 74,020 × 74,020
4. Step 4: Simplify right side
   34,940x = 5,478,960,400
5. Step 5: Solve for x
   x = 5,478,960,400/34,940
6. Step 6: Final answer
   x = 156,810.54