Finding the Third Proportional to 113,928 and 245,386.25

Step by Step Solution

1. Step 1: Write the proportion equation
   113,928 : 245,386.25 = 245,386.25 : x
2. Step 2: Convert to fraction form
   113,928/245,386.25 = 245,386.25/x
3. Step 3: Cross multiply
   113,928x = 245,386.25 × 245,386.25
4. Step 4: Simplify right side
   113,928x = 60,214,411,689.06
5. Step 5: Solve for x
   x = 60,214,411,689.06/113,928
6. Step 6: Final answer
   x = 528,530.40