Finding the Third Proportional to 84,915 and 122,080.50

Step by Step Solution

1. Step 1: Write the proportion equation
   84,915 : 122,080.50 = 122,080.50 : x
2. Step 2: Convert to fraction form
   84,915/122,080.50 = 122,080.50/x
3. Step 3: Cross multiply
   84,915x = 122,080.50 × 122,080.50
4. Step 4: Simplify right side
   84,915x = 14,903,648,480.25
5. Step 5: Solve for x
   x = 14,903,648,480.25/84,915
6. Step 6: Final answer
   x = 175,512.55