Finding the Third Proportional to 1,920,888 and 4,139,712

Step by Step Solution

1. Step 1: Write the proportion equation
   1,920,888 : 4,139,712 = 4,139,712 : x
2. Step 2: Convert to fraction form
   1,920,888/4,139,712 = 4,139,712/x
3. Step 3: Cross multiply
   1,920,888x = 4,139,712 × 4,139,712
4. Step 4: Simplify right side
   1,920,888x = 17,137,215,442,944
5. Step 5: Solve for x
   x = 17,137,215,442,944/1,920,888
6. Step 6: Final answer
   x = 8,921,506.85