Finding the Third Proportional to 453,711 and 616,555.50

Step by Step Solution

1. Step 1: Write the proportion equation
   453,711 : 616,555.50 = 616,555.50 : x
2. Step 2: Convert to fraction form
   453,711/616,555.50 = 616,555.50/x
3. Step 3: Cross multiply
   453,711x = 616,555.50 × 616,555.50
4. Step 4: Simplify right side
   453,711x = 380,140,684,580.25
5. Step 5: Solve for x
   x = 380,140,684,580.25/453,711
6. Step 6: Final answer
   x = 837,847.63