Finding the Third Proportional to 113,561 and 238,892.50

Step by Step Solution

1. Step 1: Write the proportion equation
   113,561 : 238,892.50 = 238,892.50 : x
2. Step 2: Convert to fraction form
   113,561/238,892.50 = 238,892.50/x
3. Step 3: Cross multiply
   113,561x = 238,892.50 × 238,892.50
4. Step 4: Simplify right side
   113,561x = 57,069,626,556.25
5. Step 5: Solve for x
   x = 57,069,626,556.25/113,561
6. Step 6: Final answer
   x = 502,546.00