Finding the Third Proportional to 143,923.50 and 314,046

Step by Step Solution

1. Step 1: Write the proportion equation
   143,923.50 : 314,046 = 314,046 : x
2. Step 2: Convert to fraction form
   143,923.50/314,046 = 314,046/x
3. Step 3: Cross multiply
   143,923.50x = 314,046 × 314,046
4. Step 4: Simplify right side
   143,923.50x = 98,624,890,116
5. Step 5: Solve for x
   x = 98,624,890,116/143,923.50
6. Step 6: Final answer
   x = 685,259.11