Finding the Third Proportional to 2,113,209 and 4,570,992

Step by Step Solution

1. Step 1: Write the proportion equation
   2,113,209 : 4,570,992 = 4,570,992 : x
2. Step 2: Convert to fraction form
   2,113,209/4,570,992 = 4,570,992/x
3. Step 3: Cross multiply
   2,113,209x = 4,570,992 × 4,570,992
4. Step 4: Simplify right side
   2,113,209x = 20,893,967,864,064
5. Step 5: Solve for x
   x = 20,893,967,864,064/2,113,209
6. Step 6: Final answer
   x = 9,887,317.28