Finding the Third Proportional to 8,583,938 and 12,876,931

Step by Step Solution

1. Step 1: Write the proportion equation
   8,583,938 : 12,876,931 = 12,876,931 : x
2. Step 2: Convert to fraction form
   8,583,938/12,876,931 = 12,876,931/x
3. Step 3: Cross multiply
   8,583,938x = 12,876,931 × 12,876,931
4. Step 4: Simplify right side
   8,583,938x = 165,815,351,978,761
5. Step 5: Solve for x
   x = 165,815,351,978,761/8,583,938
6. Step 6: Final answer
   x = 19,316,932.62