Finding the Third Proportional to 98,987.50 and 216,682

Step by Step Solution

1. Step 1: Write the proportion equation
   98,987.50 : 216,682 = 216,682 : x
2. Step 2: Convert to fraction form
   98,987.50/216,682 = 216,682/x
3. Step 3: Cross multiply
   98,987.50x = 216,682 × 216,682
4. Step 4: Simplify right side
   98,987.50x = 46,951,089,124
5. Step 5: Solve for x
   x = 46,951,089,124/98,987.50
6. Step 6: Final answer
   x = 474,313.31