Finding the Third Proportional to 112,284 and 245,688

Step by Step Solution

1. Step 1: Write the proportion equation
   112,284 : 245,688 = 245,688 : x
2. Step 2: Convert to fraction form
   112,284/245,688 = 245,688/x
3. Step 3: Cross multiply
   112,284x = 245,688 × 245,688
4. Step 4: Simplify right side
   112,284x = 60,362,593,344
5. Step 5: Solve for x
   x = 60,362,593,344/112,284
6. Step 6: Final answer
   x = 537,588.56