Finding the Third Proportional to 148,219.50 and 324,546

Step by Step Solution

1. Step 1: Write the proportion equation
   148,219.50 : 324,546 = 324,546 : x
2. Step 2: Convert to fraction form
   148,219.50/324,546 = 324,546/x
3. Step 3: Cross multiply
   148,219.50x = 324,546 × 324,546
4. Step 4: Simplify right side
   148,219.50x = 105,330,106,116
5. Step 5: Solve for x
   x = 105,330,106,116/148,219.50
6. Step 6: Final answer
   x = 710,635.96