Finding the Third Proportional to 67,915.13 and 74,064.38

Step by Step Solution

1. Step 1: Write the proportion equation
   67,915.13 : 74,064.38 = 74,064.38 : x
2. Step 2: Convert to fraction form
   67,915.13/74,064.38 = 74,064.38/x
3. Step 3: Cross multiply
   67,915.13x = 74,064.38 × 74,064.38
4. Step 4: Simplify right side
   67,915.13x = 5,485,531,644.14
5. Step 5: Solve for x
   x = 5,485,531,644.14/67,915.13
6. Step 6: Final answer
   x = 80,770.40