Finding the Third Proportional to 70,477.50 and 109,200

Step by Step Solution

1. Step 1: Write the proportion equation
   70,477.50 : 109,200 = 109,200 : x
2. Step 2: Convert to fraction form
   70,477.50/109,200 = 109,200/x
3. Step 3: Cross multiply
   70,477.50x = 109,200 × 109,200
4. Step 4: Simplify right side
   70,477.50x = 11,924,640,000
5. Step 5: Solve for x
   x = 11,924,640,000/70,477.50
6. Step 6: Final answer
   x = 169,197.83