Finding the Third Proportional to 1,371,172 and 2,809,160

Step by Step Solution

1. Step 1: Write the proportion equation
   1,371,172 : 2,809,160 = 2,809,160 : x
2. Step 2: Convert to fraction form
   1,371,172/2,809,160 = 2,809,160/x
3. Step 3: Cross multiply
   1,371,172x = 2,809,160 × 2,809,160
4. Step 4: Simplify right side
   1,371,172x = 7,891,379,905,600
5. Step 5: Solve for x
   x = 7,891,379,905,600/1,371,172
6. Step 6: Final answer
   x = 5,755,207.88