Finding the Third Proportional to 116,412 and 248,088

Step by Step Solution

1. Step 1: Write the proportion equation
   116,412 : 248,088 = 248,088 : x
2. Step 2: Convert to fraction form
   116,412/248,088 = 248,088/x
3. Step 3: Cross multiply
   116,412x = 248,088 × 248,088
4. Step 4: Simplify right side
   116,412x = 61,547,655,744
5. Step 5: Solve for x
   x = 61,547,655,744/116,412
6. Step 6: Final answer
   x = 528,705.42