Finding the Third Proportional to 143,973 and 314,154

Step by Step Solution

1. Step 1: Write the proportion equation
   143,973 : 314,154 = 314,154 : x
2. Step 2: Convert to fraction form
   143,973/314,154 = 314,154/x
3. Step 3: Cross multiply
   143,973x = 314,154 × 314,154
4. Step 4: Simplify right side
   143,973x = 98,692,735,716
5. Step 5: Solve for x
   x = 98,692,735,716/143,973
6. Step 6: Final answer
   x = 685,494.75