Finding the Third Proportional to 143,932.50 and 314,064

Step by Step Solution

1. Step 1: Write the proportion equation
   143,932.50 : 314,064 = 314,064 : x
2. Step 2: Convert to fraction form
   143,932.50/314,064 = 314,064/x
3. Step 3: Cross multiply
   143,932.50x = 314,064 × 314,064
4. Step 4: Simplify right side
   143,932.50x = 98,636,196,096
5. Step 5: Solve for x
   x = 98,636,196,096/143,932.50
6. Step 6: Final answer
   x = 685,294.82