Finding the Third Proportional to 347,144 and 721,932

Step by Step Solution

1. Step 1: Write the proportion equation
   347,144 : 721,932 = 721,932 : x
2. Step 2: Convert to fraction form
   347,144/721,932 = 721,932/x
3. Step 3: Cross multiply
   347,144x = 721,932 × 721,932
4. Step 4: Simplify right side
   347,144x = 521,185,812,624
5. Step 5: Solve for x
   x = 521,185,812,624/347,144
6. Step 6: Final answer
   x = 1,501,353.37