Finding the Third Proportional to 692,590.50 and 1,040,890.50

Step by Step Solution

1. Step 1: Write the proportion equation
   692,590.50 : 1,040,890.50 = 1,040,890.50 : x
2. Step 2: Convert to fraction form
   692,590.50/1,040,890.50 = 1,040,890.50/x
3. Step 3: Cross multiply
   692,590.50x = 1,040,890.50 × 1,040,890.50
4. Step 4: Simplify right side
   692,590.50x = 1,083,453,032,990.25
5. Step 5: Solve for x
   x = 1,083,453,032,990.25/692,590.50
6. Step 6: Final answer
   x = 1,564,348.68