Finding the Third Proportional to 3,528,506 and 5,278,656

Step by Step Solution

1. Step 1: Write the proportion equation
   3,528,506 : 5,278,656 = 5,278,656 : x
2. Step 2: Convert to fraction form
   3,528,506/5,278,656 = 5,278,656/x
3. Step 3: Cross multiply
   3,528,506x = 5,278,656 × 5,278,656
4. Step 4: Simplify right side
   3,528,506x = 27,864,209,166,336
5. Step 5: Solve for x
   x = 27,864,209,166,336/3,528,506
6. Step 6: Final answer
   x = 7,896,885.87