Finding the Third Proportional to 2,007,990 and 4,307,148

Step by Step Solution

1. Step 1: Write the proportion equation
   2,007,990 : 4,307,148 = 4,307,148 : x
2. Step 2: Convert to fraction form
   2,007,990/4,307,148 = 4,307,148/x
3. Step 3: Cross multiply
   2,007,990x = 4,307,148 × 4,307,148
4. Step 4: Simplify right side
   2,007,990x = 18,551,523,893,904
5. Step 5: Solve for x
   x = 18,551,523,893,904/2,007,990
6. Step 6: Final answer
   x = 9,238,852.73