Finding the Third Proportional to 70,389 and 109,084.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,389 : 109,084.50 = 109,084.50 : x
2. Step 2: Convert to fraction form
   70,389/109,084.50 = 109,084.50/x
3. Step 3: Cross multiply
   70,389x = 109,084.50 × 109,084.50
4. Step 4: Simplify right side
   70,389x = 11,899,428,140.25
5. Step 5: Solve for x
   x = 11,899,428,140.25/70,389
6. Step 6: Final answer
   x = 169,052.38