Finding the Third Proportional to 88,810.50 and 190,287

Step by Step Solution

1. Step 1: Write the proportion equation
   88,810.50 : 190,287 = 190,287 : x
2. Step 2: Convert to fraction form
   88,810.50/190,287 = 190,287/x
3. Step 3: Cross multiply
   88,810.50x = 190,287 × 190,287
4. Step 4: Simplify right side
   88,810.50x = 36,209,142,369
5. Step 5: Solve for x
   x = 36,209,142,369/88,810.50
6. Step 6: Final answer
   x = 407,712.40