Finding the Third Proportional to 3,118,688 and 4,665,338

Step by Step Solution

1. Step 1: Write the proportion equation
   3,118,688 : 4,665,338 = 4,665,338 : x
2. Step 2: Convert to fraction form
   3,118,688/4,665,338 = 4,665,338/x
3. Step 3: Cross multiply
   3,118,688x = 4,665,338 × 4,665,338
4. Step 4: Simplify right side
   3,118,688x = 21,765,378,654,244
5. Step 5: Solve for x
   x = 21,765,378,654,244/3,118,688
6. Step 6: Final answer
   x = 6,979,017.67