Finding the Third Proportional to 455,607 and 724,099.50

Step by Step Solution

1. Step 1: Write the proportion equation
   455,607 : 724,099.50 = 724,099.50 : x
2. Step 2: Convert to fraction form
   455,607/724,099.50 = 724,099.50/x
3. Step 3: Cross multiply
   455,607x = 724,099.50 × 724,099.50
4. Step 4: Simplify right side
   455,607x = 524,320,085,900.25
5. Step 5: Solve for x
   x = 524,320,085,900.25/455,607
6. Step 6: Final answer
   x = 1,150,816.57