Finding the Third Proportional to 71,613 and 168,448.50

Step by Step Solution

1. Step 1: Write the proportion equation
   71,613 : 168,448.50 = 168,448.50 : x
2. Step 2: Convert to fraction form
   71,613/168,448.50 = 168,448.50/x
3. Step 3: Cross multiply
   71,613x = 168,448.50 × 168,448.50
4. Step 4: Simplify right side
   71,613x = 28,374,897,152.25
5. Step 5: Solve for x
   x = 28,374,897,152.25/71,613
6. Step 6: Final answer
   x = 396,225.51