Finding the Third Proportional to 12,328,434 and 19,634,274

Step by Step Solution

1. Step 1: Write the proportion equation
   12,328,434 : 19,634,274 = 19,634,274 : x
2. Step 2: Convert to fraction form
   12,328,434/19,634,274 = 19,634,274/x
3. Step 3: Cross multiply
   12,328,434x = 19,634,274 × 19,634,274
4. Step 4: Simplify right side
   12,328,434x = 385,504,715,507,076
5. Step 5: Solve for x
   x = 385,504,715,507,076/12,328,434
6. Step 6: Final answer
   x = 31,269,560.72