Finding the Third Proportional to 98,215.50 and 210,768

Step by Step Solution

1. Step 1: Write the proportion equation
   98,215.50 : 210,768 = 210,768 : x
2. Step 2: Convert to fraction form
   98,215.50/210,768 = 210,768/x
3. Step 3: Cross multiply
   98,215.50x = 210,768 × 210,768
4. Step 4: Simplify right side
   98,215.50x = 44,423,149,824
5. Step 5: Solve for x
   x = 44,423,149,824/98,215.50
6. Step 6: Final answer
   x = 452,302.84