Finding the Third Proportional to 300,472.50 and 709,293

Step by Step Solution

1. Step 1: Write the proportion equation
   300,472.50 : 709,293 = 709,293 : x
2. Step 2: Convert to fraction form
   300,472.50/709,293 = 709,293/x
3. Step 3: Cross multiply
   300,472.50x = 709,293 × 709,293
4. Step 4: Simplify right side
   300,472.50x = 503,096,559,849
5. Step 5: Solve for x
   x = 503,096,559,849/300,472.50
6. Step 6: Final answer
   x = 1,674,351.43