Finding the Third Proportional to 1,421,912 and 2,180,373

Step by Step Solution

1. Step 1: Write the proportion equation
   1,421,912 : 2,180,373 = 2,180,373 : x
2. Step 2: Convert to fraction form
   1,421,912/2,180,373 = 2,180,373/x
3. Step 3: Cross multiply
   1,421,912x = 2,180,373 × 2,180,373
4. Step 4: Simplify right side
   1,421,912x = 4,754,026,419,129
5. Step 5: Solve for x
   x = 4,754,026,419,129/1,421,912
6. Step 6: Final answer
   x = 3,343,404.11