Finding the Third Proportional to 103,200.47 and 215,764.03

Step by Step Solution

1. Step 1: Write the proportion equation
   103,200.47 : 215,764.03 = 215,764.03 : x
2. Step 2: Convert to fraction form
   103,200.47/215,764.03 = 215,764.03/x
3. Step 3: Cross multiply
   103,200.47x = 215,764.03 × 215,764.03
4. Step 4: Simplify right side
   103,200.47x = 46,554,117,181.25
5. Step 5: Solve for x
   x = 46,554,117,181.25/103,200.47
6. Step 6: Final answer
   x = 451,103.74