Finding the Third Proportional to 3,558,883.50 and 5,515,290

Step by Step Solution

1. Step 1: Write the proportion equation
   3,558,883.50 : 5,515,290 = 5,515,290 : x
2. Step 2: Convert to fraction form
   3,558,883.50/5,515,290 = 5,515,290/x
3. Step 3: Cross multiply
   3,558,883.50x = 5,515,290 × 5,515,290
4. Step 4: Simplify right side
   3,558,883.50x = 30,418,423,784,100
5. Step 5: Solve for x
   x = 30,418,423,784,100/3,558,883.50
6. Step 6: Final answer
   x = 8,547,181.66