Finding the Third Proportional to 4,061,439 and 8,919,931

Step by Step Solution

1. Step 1: Write the proportion equation
   4,061,439 : 8,919,931 = 8,919,931 : x
2. Step 2: Convert to fraction form
   4,061,439/8,919,931 = 8,919,931/x
3. Step 3: Cross multiply
   4,061,439x = 8,919,931 × 8,919,931
4. Step 4: Simplify right side
   4,061,439x = 79,565,169,044,761
5. Step 5: Solve for x
   x = 79,565,169,044,761/4,061,439
6. Step 6: Final answer
   x = 19,590,388.79