Finding the Third Proportional to 1,671,680 and 2,546,688

Step by Step Solution

1. Step 1: Write the proportion equation
   1,671,680 : 2,546,688 = 2,546,688 : x
2. Step 2: Convert to fraction form
   1,671,680/2,546,688 = 2,546,688/x
3. Step 3: Cross multiply
   1,671,680x = 2,546,688 × 2,546,688
4. Step 4: Simplify right side
   1,671,680x = 6,485,619,769,344
5. Step 5: Solve for x
   x = 6,485,619,769,344/1,671,680
6. Step 6: Final answer
   x = 3,879,701.72