Finding the Third Proportional to 811,640 and 1,735,840

Step by Step Solution

1. Step 1: Write the proportion equation
   811,640 : 1,735,840 = 1,735,840 : x
2. Step 2: Convert to fraction form
   811,640/1,735,840 = 1,735,840/x
3. Step 3: Cross multiply
   811,640x = 1,735,840 × 1,735,840
4. Step 4: Simplify right side
   811,640x = 3,013,140,505,600
5. Step 5: Solve for x
   x = 3,013,140,505,600/811,640
6. Step 6: Final answer
   x = 3,712,410.07