Finding the Third Proportional to 1,905,407 and 4,087,105

Step by Step Solution

1. Step 1: Write the proportion equation
   1,905,407 : 4,087,105 = 4,087,105 : x
2. Step 2: Convert to fraction form
   1,905,407/4,087,105 = 4,087,105/x
3. Step 3: Cross multiply
   1,905,407x = 4,087,105 × 4,087,105
4. Step 4: Simplify right side
   1,905,407x = 16,704,427,281,025
5. Step 5: Solve for x
   x = 16,704,427,281,025/1,905,407
6. Step 6: Final answer
   x = 8,766,855.21