Finding the Third Proportional to 610,778 and 1,329,988

Step by Step Solution

1. Step 1: Write the proportion equation
   610,778 : 1,329,988 = 1,329,988 : x
2. Step 2: Convert to fraction form
   610,778/1,329,988 = 1,329,988/x
3. Step 3: Cross multiply
   610,778x = 1,329,988 × 1,329,988
4. Step 4: Simplify right side
   610,778x = 1,768,868,080,144
5. Step 5: Solve for x
   x = 1,768,868,080,144/610,778
6. Step 6: Final answer
   x = 2,896,090.04