Finding the Third Proportional to 70,545 and 109,321.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,545 : 109,321.50 = 109,321.50 : x
2. Step 2: Convert to fraction form
   70,545/109,321.50 = 109,321.50/x
3. Step 3: Cross multiply
   70,545x = 109,321.50 × 109,321.50
4. Step 4: Simplify right side
   70,545x = 11,951,190,362.25
5. Step 5: Solve for x
   x = 11,951,190,362.25/70,545
6. Step 6: Final answer
   x = 169,412.30