Finding the Third Proportional to 99,696 and 215,044.50

Step by Step Solution

1. Step 1: Write the proportion equation
   99,696 : 215,044.50 = 215,044.50 : x
2. Step 2: Convert to fraction form
   99,696/215,044.50 = 215,044.50/x
3. Step 3: Cross multiply
   99,696x = 215,044.50 × 215,044.50
4. Step 4: Simplify right side
   99,696x = 46,244,136,980.25
5. Step 5: Solve for x
   x = 46,244,136,980.25/99,696
6. Step 6: Final answer
   x = 463,851.48