Finding the Third Proportional to 5,570,086 and 8,520,640

Step by Step Solution

1. Step 1: Write the proportion equation
   5,570,086 : 8,520,640 = 8,520,640 : x
2. Step 2: Convert to fraction form
   5,570,086/8,520,640 = 8,520,640/x
3. Step 3: Cross multiply
   5,570,086x = 8,520,640 × 8,520,640
4. Step 4: Simplify right side
   5,570,086x = 72,601,306,009,600
5. Step 5: Solve for x
   x = 72,601,306,009,600/5,570,086
6. Step 6: Final answer
   x = 13,034,144.54