Finding the Third Proportional to 113,445 and 238,495.50

Step by Step Solution

1. Step 1: Write the proportion equation
   113,445 : 238,495.50 = 238,495.50 : x
2. Step 2: Convert to fraction form
   113,445/238,495.50 = 238,495.50/x
3. Step 3: Cross multiply
   113,445x = 238,495.50 × 238,495.50
4. Step 4: Simplify right side
   113,445x = 56,880,103,520.25
5. Step 5: Solve for x
   x = 56,880,103,520.25/113,445
6. Step 6: Final answer
   x = 501,389.25