Finding the Third Proportional to 4,538,700 and 9,719,592

Step by Step Solution

1. Step 1: Write the proportion equation
   4,538,700 : 9,719,592 = 9,719,592 : x
2. Step 2: Convert to fraction form
   4,538,700/9,719,592 = 9,719,592/x
3. Step 3: Cross multiply
   4,538,700x = 9,719,592 × 9,719,592
4. Step 4: Simplify right side
   4,538,700x = 94,470,468,646,464
5. Step 5: Solve for x
   x = 94,470,468,646,464/4,538,700
6. Step 6: Final answer
   x = 20,814,433.35