Finding the Third Proportional to 143,756 and 307,222

Step by Step Solution

1. Step 1: Write the proportion equation
   143,756 : 307,222 = 307,222 : x
2. Step 2: Convert to fraction form
   143,756/307,222 = 307,222/x
3. Step 3: Cross multiply
   143,756x = 307,222 × 307,222
4. Step 4: Simplify right side
   143,756x = 94,385,357,284
5. Step 5: Solve for x
   x = 94,385,357,284/143,756
6. Step 6: Final answer
   x = 656,566.39