Finding the Third Proportional to 71,448 and 105,199.50

Step by Step Solution

1. Step 1: Write the proportion equation
   71,448 : 105,199.50 = 105,199.50 : x
2. Step 2: Convert to fraction form
   71,448/105,199.50 = 105,199.50/x
3. Step 3: Cross multiply
   71,448x = 105,199.50 × 105,199.50
4. Step 4: Simplify right side
   71,448x = 11,066,934,800.25
5. Step 5: Solve for x
   x = 11,066,934,800.25/71,448
6. Step 6: Final answer
   x = 154,894.96