Finding the Third Proportional to 112,390.50 and 245,490

Step by Step Solution

1. Step 1: Write the proportion equation
   112,390.50 : 245,490 = 245,490 : x
2. Step 2: Convert to fraction form
   112,390.50/245,490 = 245,490/x
3. Step 3: Cross multiply
   112,390.50x = 245,490 × 245,490
4. Step 4: Simplify right side
   112,390.50x = 60,265,340,100
5. Step 5: Solve for x
   x = 60,265,340,100/112,390.50
6. Step 6: Final answer
   x = 536,213.83