Finding the Third Proportional to 16,920,389 and 25,777,146

Step by Step Solution

1. Step 1: Write the proportion equation
   16,920,389 : 25,777,146 = 25,777,146 : x
2. Step 2: Convert to fraction form
   16,920,389/25,777,146 = 25,777,146/x
3. Step 3: Cross multiply
   16,920,389x = 25,777,146 × 25,777,146
4. Step 4: Simplify right side
   16,920,389x = 664,461,255,905,316
5. Step 5: Solve for x
   x = 664,461,255,905,316/16,920,389
6. Step 6: Final answer
   x = 39,269,856.97