Finding the Third Proportional to 70,921.69 and 109,810.69

Step by Step Solution

1. Step 1: Write the proportion equation
   70,921.69 : 109,810.69 = 109,810.69 : x
2. Step 2: Convert to fraction form
   70,921.69/109,810.69 = 109,810.69/x
3. Step 3: Cross multiply
   70,921.69x = 109,810.69 × 109,810.69
4. Step 4: Simplify right side
   70,921.69x = 12,058,387,089.22
5. Step 5: Solve for x
   x = 12,058,387,089.22/70,921.69
6. Step 6: Final answer
   x = 170,023.97