Finding the Third Proportional to 119,155 and 248,111

Step by Step Solution

1. Step 1: Write the proportion equation
   119,155 : 248,111 = 248,111 : x
2. Step 2: Convert to fraction form
   119,155/248,111 = 248,111/x
3. Step 3: Cross multiply
   119,155x = 248,111 × 248,111
4. Step 4: Simplify right side
   119,155x = 61,559,068,321
5. Step 5: Solve for x
   x = 61,559,068,321/119,155
6. Step 6: Final answer
   x = 516,630.17