Finding the Third Proportional to 464,514.50 and 688,137

Step by Step Solution

1. Step 1: Write the proportion equation
   464,514.50 : 688,137 = 688,137 : x
2. Step 2: Convert to fraction form
   464,514.50/688,137 = 688,137/x
3. Step 3: Cross multiply
   464,514.50x = 688,137 × 688,137
4. Step 4: Simplify right side
   464,514.50x = 473,532,530,769
5. Step 5: Solve for x
   x = 473,532,530,769/464,514.50
6. Step 6: Final answer
   x = 1,019,413.88