Finding the Third Proportional to 69,450.09 and 105,143.34

Step by Step Solution

1. Step 1: Write the proportion equation
   69,450.09 : 105,143.34 = 105,143.34 : x
2. Step 2: Convert to fraction form
   69,450.09/105,143.34 = 105,143.34/x
3. Step 3: Cross multiply
   69,450.09x = 105,143.34 × 105,143.34
4. Step 4: Simplify right side
   69,450.09x = 11,055,122,734.93
5. Step 5: Solve for x
   x = 11,055,122,734.93/69,450.09
6. Step 6: Final answer
   x = 159,180.82