Finding the Third Proportional to 435,397 and 672,513.50

Step by Step Solution

1. Step 1: Write the proportion equation
   435,397 : 672,513.50 = 672,513.50 : x
2. Step 2: Convert to fraction form
   435,397/672,513.50 = 672,513.50/x
3. Step 3: Cross multiply
   435,397x = 672,513.50 × 672,513.50
4. Step 4: Simplify right side
   435,397x = 452,274,407,682.25
5. Step 5: Solve for x
   x = 452,274,407,682.25/435,397
6. Step 6: Final answer
   x = 1,038,763.26