Finding the Third Proportional to 9,196,454 and 21,678,602

Step by Step Solution

1. Step 1: Write the proportion equation
   9,196,454 : 21,678,602 = 21,678,602 : x
2. Step 2: Convert to fraction form
   9,196,454/21,678,602 = 21,678,602/x
3. Step 3: Cross multiply
   9,196,454x = 21,678,602 × 21,678,602
4. Step 4: Simplify right side
   9,196,454x = 469,961,784,674,404
5. Step 5: Solve for x
   x = 469,961,784,674,404/9,196,454
6. Step 6: Final answer
   x = 51,102,499.36