Finding the Third Proportional to 3,915.84 and 8,573.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,915.84 : 8,573.34 = 8,573.34 : x
2. Step 2: Convert to fraction form
   3,915.84/8,573.34 = 8,573.34/x
3. Step 3: Cross multiply
   3,915.84x = 8,573.34 × 8,573.34
4. Step 4: Simplify right side
   3,915.84x = 73,502,223.06
5. Step 5: Solve for x
   x = 73,502,223.06/3,915.84
6. Step 6: Final answer
   x = 18,770.47