Finding the Third Proportional to 86,815.50 and 190,248

Step by Step Solution

1. Step 1: Write the proportion equation
   86,815.50 : 190,248 = 190,248 : x
2. Step 2: Convert to fraction form
   86,815.50/190,248 = 190,248/x
3. Step 3: Cross multiply
   86,815.50x = 190,248 × 190,248
4. Step 4: Simplify right side
   86,815.50x = 36,194,301,504
5. Step 5: Solve for x
   x = 36,194,301,504/86,815.50
6. Step 6: Final answer
   x = 416,910.59