Finding the Third Proportional to 69,021 and 108,148.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,021 : 108,148.50 = 108,148.50 : x
2. Step 2: Convert to fraction form
   69,021/108,148.50 = 108,148.50/x
3. Step 3: Cross multiply
   69,021x = 108,148.50 × 108,148.50
4. Step 4: Simplify right side
   69,021x = 11,696,098,052.25
5. Step 5: Solve for x
   x = 11,696,098,052.25/69,021
6. Step 6: Final answer
   x = 169,457.09