Finding the Third Proportional to 143,343 and 215,068.50

Step by Step Solution

1. Step 1: Write the proportion equation
   143,343 : 215,068.50 = 215,068.50 : x
2. Step 2: Convert to fraction form
   143,343/215,068.50 = 215,068.50/x
3. Step 3: Cross multiply
   143,343x = 215,068.50 × 215,068.50
4. Step 4: Simplify right side
   143,343x = 46,254,459,692.25
5. Step 5: Solve for x
   x = 46,254,459,692.25/143,343
6. Step 6: Final answer
   x = 322,683.77