Finding the Third Proportional to 1,310,778 and 1,975,410

Step by Step Solution

1. Step 1: Write the proportion equation
   1,310,778 : 1,975,410 = 1,975,410 : x
2. Step 2: Convert to fraction form
   1,310,778/1,975,410 = 1,975,410/x
3. Step 3: Cross multiply
   1,310,778x = 1,975,410 × 1,975,410
4. Step 4: Simplify right side
   1,310,778x = 3,902,244,668,100
5. Step 5: Solve for x
   x = 3,902,244,668,100/1,310,778
6. Step 6: Final answer
   x = 2,977,044.68