Finding the Third Proportional to 1,020,640 and 1,460,960

Step by Step Solution

1. Step 1: Write the proportion equation
   1,020,640 : 1,460,960 = 1,460,960 : x
2. Step 2: Convert to fraction form
   1,020,640/1,460,960 = 1,460,960/x
3. Step 3: Cross multiply
   1,020,640x = 1,460,960 × 1,460,960
4. Step 4: Simplify right side
   1,020,640x = 2,134,404,121,600
5. Step 5: Solve for x
   x = 2,134,404,121,600/1,020,640
6. Step 6: Final answer
   x = 2,091,240.91