Finding the Third Proportional to 149,548 and 324,111

Step by Step Solution

1. Step 1: Write the proportion equation
   149,548 : 324,111 = 324,111 : x
2. Step 2: Convert to fraction form
   149,548/324,111 = 324,111/x
3. Step 3: Cross multiply
   149,548x = 324,111 × 324,111
4. Step 4: Simplify right side
   149,548x = 105,047,940,321
5. Step 5: Solve for x
   x = 105,047,940,321/149,548
6. Step 6: Final answer
   x = 702,436.28