Finding the Third Proportional to 450,153 and 712,813.50

Step by Step Solution

1. Step 1: Write the proportion equation
   450,153 : 712,813.50 = 712,813.50 : x
2. Step 2: Convert to fraction form
   450,153/712,813.50 = 712,813.50/x
3. Step 3: Cross multiply
   450,153x = 712,813.50 × 712,813.50
4. Step 4: Simplify right side
   450,153x = 508,103,085,782.25
5. Step 5: Solve for x
   x = 508,103,085,782.25/450,153
6. Step 6: Final answer
   x = 1,128,734.20