Finding the Third Proportional to 2,139,194 and 3,209,253

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139,194 : 3,209,253 = 3,209,253 : x
2. Step 2: Convert to fraction form
   2,139,194/3,209,253 = 3,209,253/x
3. Step 3: Cross multiply
   2,139,194x = 3,209,253 × 3,209,253
4. Step 4: Simplify right side
   2,139,194x = 10,299,304,818,009
5. Step 5: Solve for x
   x = 10,299,304,818,009/2,139,194
6. Step 6: Final answer
   x = 4,814,572.60