Finding the Third Proportional to 748,830.23 and 1,640,105.72

Step by Step Solution

1. Step 1: Write the proportion equation
   748,830.23 : 1,640,105.72 = 1,640,105.72 : x
2. Step 2: Convert to fraction form
   748,830.23/1,640,105.72 = 1,640,105.72/x
3. Step 3: Cross multiply
   748,830.23x = 1,640,105.72 × 1,640,105.72
4. Step 4: Simplify right side
   748,830.23x = 2,689,946,768,676.45
5. Step 5: Solve for x
   x = 2,689,946,768,676.45/748,830.23
6. Step 6: Final answer
   x = 3,592,198.40