Finding the Third Proportional to 1,992,738 and 3,172,381

Step by Step Solution

1. Step 1: Write the proportion equation
   1,992,738 : 3,172,381 = 3,172,381 : x
2. Step 2: Convert to fraction form
   1,992,738/3,172,381 = 3,172,381/x
3. Step 3: Cross multiply
   1,992,738x = 3,172,381 × 3,172,381
4. Step 4: Simplify right side
   1,992,738x = 10,064,001,209,161
5. Step 5: Solve for x
   x = 10,064,001,209,161/1,992,738
6. Step 6: Final answer
   x = 5,050,338.38