Finding the Third Proportional to 158,922 and 316,021.50

Step by Step Solution

1. Step 1: Write the proportion equation
   158,922 : 316,021.50 = 316,021.50 : x
2. Step 2: Convert to fraction form
   158,922/316,021.50 = 316,021.50/x
3. Step 3: Cross multiply
   158,922x = 316,021.50 × 316,021.50
4. Step 4: Simplify right side
   158,922x = 99,869,588,462.25
5. Step 5: Solve for x
   x = 99,869,588,462.25/158,922
6. Step 6: Final answer
   x = 628,418.90