Finding the Third Proportional to 85,915.69 and 190,375.31

Step by Step Solution

1. Step 1: Write the proportion equation
   85,915.69 : 190,375.31 = 190,375.31 : x
2. Step 2: Convert to fraction form
   85,915.69/190,375.31 = 190,375.31/x
3. Step 3: Cross multiply
   85,915.69x = 190,375.31 × 190,375.31
4. Step 4: Simplify right side
   85,915.69x = 36,242,759,609.47
5. Step 5: Solve for x
   x = 36,242,759,609.47/85,915.69
6. Step 6: Final answer
   x = 421,841.00