Finding the Third Proportional to 747,778 and 1,645,082

Step by Step Solution

1. Step 1: Write the proportion equation
   747,778 : 1,645,082 = 1,645,082 : x
2. Step 2: Convert to fraction form
   747,778/1,645,082 = 1,645,082/x
3. Step 3: Cross multiply
   747,778x = 1,645,082 × 1,645,082
4. Step 4: Simplify right side
   747,778x = 2,706,294,786,724
5. Step 5: Solve for x
   x = 2,706,294,786,724/747,778
6. Step 6: Final answer
   x = 3,619,115.28