Finding the Third Proportional to 305,838 and 719,574.50

Step by Step Solution

1. Step 1: Write the proportion equation
   305,838 : 719,574.50 = 719,574.50 : x
2. Step 2: Convert to fraction form
   305,838/719,574.50 = 719,574.50/x
3. Step 3: Cross multiply
   305,838x = 719,574.50 × 719,574.50
4. Step 4: Simplify right side
   305,838x = 517,787,461,050.25
5. Step 5: Solve for x
   x = 517,787,461,050.25/305,838
6. Step 6: Final answer
   x = 1,693,012.19