Finding the Third Proportional to 2,138,522 and 4,453,968

Step by Step Solution

1. Step 1: Write the proportion equation
   2,138,522 : 4,453,968 = 4,453,968 : x
2. Step 2: Convert to fraction form
   2,138,522/4,453,968 = 4,453,968/x
3. Step 3: Cross multiply
   2,138,522x = 4,453,968 × 4,453,968
4. Step 4: Simplify right side
   2,138,522x = 19,837,830,945,024
5. Step 5: Solve for x
   x = 19,837,830,945,024/2,138,522
6. Step 6: Final answer
   x = 9,276,421.26