Finding the Third Proportional to 87,773.40 and 188,867.42

Step by Step Solution

1. Step 1: Write the proportion equation
   87,773.40 : 188,867.42 = 188,867.42 : x
2. Step 2: Convert to fraction form
   87,773.40/188,867.42 = 188,867.42/x
3. Step 3: Cross multiply
   87,773.40x = 188,867.42 × 188,867.42
4. Step 4: Simplify right side
   87,773.40x = 35,670,902,031.28
5. Step 5: Solve for x
   x = 35,670,902,031.28/87,773.40
6. Step 6: Final answer
   x = 406,397.64