Finding the Third Proportional to 5,516,603 and 8,563,590

Step by Step Solution

1. Step 1: Write the proportion equation
   5,516,603 : 8,563,590 = 8,563,590 : x
2. Step 2: Convert to fraction form
   5,516,603/8,563,590 = 8,563,590/x
3. Step 3: Cross multiply
   5,516,603x = 8,563,590 × 8,563,590
4. Step 4: Simplify right side
   5,516,603x = 73,335,073,688,100
5. Step 5: Solve for x
   x = 73,335,073,688,100/5,516,603
6. Step 6: Final answer
   x = 13,293,520.25