Finding the Third Proportional to 2,549,772 and 5,563,188

Step by Step Solution

1. Step 1: Write the proportion equation
   2,549,772 : 5,563,188 = 5,563,188 : x
2. Step 2: Convert to fraction form
   2,549,772/5,563,188 = 5,563,188/x
3. Step 3: Cross multiply
   2,549,772x = 5,563,188 × 5,563,188
4. Step 4: Simplify right side
   2,549,772x = 30,949,060,723,344
5. Step 5: Solve for x
   x = 30,949,060,723,344/2,549,772
6. Step 6: Final answer
   x = 12,137,971.84