Finding the Third Proportional to 1,767,980 and 3,870,328

Step by Step Solution

1. Step 1: Write the proportion equation
   1,767,980 : 3,870,328 = 3,870,328 : x
2. Step 2: Convert to fraction form
   1,767,980/3,870,328 = 3,870,328/x
3. Step 3: Cross multiply
   1,767,980x = 3,870,328 × 3,870,328
4. Step 4: Simplify right side
   1,767,980x = 14,979,438,827,584
5. Step 5: Solve for x
   x = 14,979,438,827,584/1,767,980
6. Step 6: Final answer
   x = 8,472,629.12