Finding the Third Proportional to 34,300 and 74,912

Step by Step Solution

1. Step 1: Write the proportion equation
   34,300 : 74,912 = 74,912 : x
2. Step 2: Convert to fraction form
   34,300/74,912 = 74,912/x
3. Step 3: Cross multiply
   34,300x = 74,912 × 74,912
4. Step 4: Simplify right side
   34,300x = 5,611,807,744
5. Step 5: Solve for x
   x = 5,611,807,744/34,300
6. Step 6: Final answer
   x = 163,609.56