Finding the Third Proportional to 4,069,645 and 8,846,905

Step by Step Solution

1. Step 1: Write the proportion equation
   4,069,645 : 8,846,905 = 8,846,905 : x
2. Step 2: Convert to fraction form
   4,069,645/8,846,905 = 8,846,905/x
3. Step 3: Cross multiply
   4,069,645x = 8,846,905 × 8,846,905
4. Step 4: Simplify right side
   4,069,645x = 78,267,728,079,025
5. Step 5: Solve for x
   x = 78,267,728,079,025/4,069,645
6. Step 6: Final answer
   x = 19,232,077.51