Finding the Third Proportional to 4,100.63 and 8,918.86

Step by Step Solution

1. Step 1: Write the proportion equation
   4,100.63 : 8,918.86 = 8,918.86 : x
2. Step 2: Convert to fraction form
   4,100.63/8,918.86 = 8,918.86/x
3. Step 3: Cross multiply
   4,100.63x = 8,918.86 × 8,918.86
4. Step 4: Simplify right side
   4,100.63x = 79,546,052.55
5. Step 5: Solve for x
   x = 79,546,052.55/4,100.63
6. Step 6: Final answer
   x = 19,398.52