Finding the Third Proportional to 143,982 and 314,167.50

Step by Step Solution

1. Step 1: Write the proportion equation
   143,982 : 314,167.50 = 314,167.50 : x
2. Step 2: Convert to fraction form
   143,982/314,167.50 = 314,167.50/x
3. Step 3: Cross multiply
   143,982x = 314,167.50 × 314,167.50
4. Step 4: Simplify right side
   143,982x = 98,701,218,056.25
5. Step 5: Solve for x
   x = 98,701,218,056.25/143,982
6. Step 6: Final answer
   x = 685,510.81