Finding the Third Proportional to 307,240 and 476,844

Step by Step Solution

1. Step 1: Write the proportion equation
   307,240 : 476,844 = 476,844 : x
2. Step 2: Convert to fraction form
   307,240/476,844 = 476,844/x
3. Step 3: Cross multiply
   307,240x = 476,844 × 476,844
4. Step 4: Simplify right side
   307,240x = 227,380,200,336
5. Step 5: Solve for x
   x = 227,380,200,336/307,240
6. Step 6: Final answer
   x = 740,073.56