Finding the Third Proportional to 70,215 and 106,078.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,215 : 106,078.50 = 106,078.50 : x
2. Step 2: Convert to fraction form
   70,215/106,078.50 = 106,078.50/x
3. Step 3: Cross multiply
   70,215x = 106,078.50 × 106,078.50
4. Step 4: Simplify right side
   70,215x = 11,252,648,162.25
5. Step 5: Solve for x
   x = 11,252,648,162.25/70,215
6. Step 6: Final answer
   x = 160,259.89