Finding the Third Proportional to 98,984.50 and 215,835.50

Step by Step Solution

1. Step 1: Write the proportion equation
   98,984.50 : 215,835.50 = 215,835.50 : x
2. Step 2: Convert to fraction form
   98,984.50/215,835.50 = 215,835.50/x
3. Step 3: Cross multiply
   98,984.50x = 215,835.50 × 215,835.50
4. Step 4: Simplify right side
   98,984.50x = 46,584,963,060.25
5. Step 5: Solve for x
   x = 46,584,963,060.25/98,984.50
6. Step 6: Final answer
   x = 470,628.87