Finding the Third Proportional to 435,297 and 616,495.50

Step by Step Solution

1. Step 1: Write the proportion equation
   435,297 : 616,495.50 = 616,495.50 : x
2. Step 2: Convert to fraction form
   435,297/616,495.50 = 616,495.50/x
3. Step 3: Cross multiply
   435,297x = 616,495.50 × 616,495.50
4. Step 4: Simplify right side
   435,297x = 380,066,701,520.25
5. Step 5: Solve for x
   x = 380,066,701,520.25/435,297
6. Step 6: Final answer
   x = 873,120.42