Finding the Third Proportional to 40,189.63 and 87,297.88

Step by Step Solution

1. Step 1: Write the proportion equation
   40,189.63 : 87,297.88 = 87,297.88 : x
2. Step 2: Convert to fraction form
   40,189.63/87,297.88 = 87,297.88/x
3. Step 3: Cross multiply
   40,189.63x = 87,297.88 × 87,297.88
4. Step 4: Simplify right side
   40,189.63x = 7,620,918,979.52
5. Step 5: Solve for x
   x = 7,620,918,979.52/40,189.63
6. Step 6: Final answer
   x = 189,624.04