Finding the Third Proportional to 1,311,372 and 1,979,106

Step by Step Solution

1. Step 1: Write the proportion equation
   1,311,372 : 1,979,106 = 1,979,106 : x
2. Step 2: Convert to fraction form
   1,311,372/1,979,106 = 1,979,106/x
3. Step 3: Cross multiply
   1,311,372x = 1,979,106 × 1,979,106
4. Step 4: Simplify right side
   1,311,372x = 3,916,860,559,236
5. Step 5: Solve for x
   x = 3,916,860,559,236/1,311,372
6. Step 6: Final answer
   x = 2,986,841.69