Finding the Third Proportional to 4,137,381 and 8,772,372

Step by Step Solution

1. Step 1: Write the proportion equation
   4,137,381 : 8,772,372 = 8,772,372 : x
2. Step 2: Convert to fraction form
   4,137,381/8,772,372 = 8,772,372/x
3. Step 3: Cross multiply
   4,137,381x = 8,772,372 × 8,772,372
4. Step 4: Simplify right side
   4,137,381x = 76,954,510,506,384
5. Step 5: Solve for x
   x = 76,954,510,506,384/4,137,381
6. Step 6: Final answer
   x = 18,599,812.42