Finding the Third Proportional to 113,929.50 and 245,391

Step by Step Solution

1. Step 1: Write the proportion equation
   113,929.50 : 245,391 = 245,391 : x
2. Step 2: Convert to fraction form
   113,929.50/245,391 = 245,391/x
3. Step 3: Cross multiply
   113,929.50x = 245,391 × 245,391
4. Step 4: Simplify right side
   113,929.50x = 60,216,742,881
5. Step 5: Solve for x
   x = 60,216,742,881/113,929.50
6. Step 6: Final answer
   x = 528,543.91