Finding the Third Proportional to 1,870,461 and 4,020,640

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870,461 : 4,020,640 = 4,020,640 : x
2. Step 2: Convert to fraction form
   1,870,461/4,020,640 = 4,020,640/x
3. Step 3: Cross multiply
   1,870,461x = 4,020,640 × 4,020,640
4. Step 4: Simplify right side
   1,870,461x = 16,165,546,009,600
5. Step 5: Solve for x
   x = 16,165,546,009,600/1,870,461
6. Step 6: Final answer
   x = 8,642,546.41