Finding the Third Proportional to 112,307.50 and 169,630.50

Step by Step Solution

1. Step 1: Write the proportion equation
   112,307.50 : 169,630.50 = 169,630.50 : x
2. Step 2: Convert to fraction form
   112,307.50/169,630.50 = 169,630.50/x
3. Step 3: Cross multiply
   112,307.50x = 169,630.50 × 169,630.50
4. Step 4: Simplify right side
   112,307.50x = 28,774,506,530.25
5. Step 5: Solve for x
   x = 28,774,506,530.25/112,307.50
6. Step 6: Final answer
   x = 256,211.80