Finding the Third Proportional to 773,620 and 1,646,890

Step by Step Solution

1. Step 1: Write the proportion equation
   773,620 : 1,646,890 = 1,646,890 : x
2. Step 2: Convert to fraction form
   773,620/1,646,890 = 1,646,890/x
3. Step 3: Cross multiply
   773,620x = 1,646,890 × 1,646,890
4. Step 4: Simplify right side
   773,620x = 2,712,246,672,100
5. Step 5: Solve for x
   x = 2,712,246,672,100/773,620
6. Step 6: Final answer
   x = 3,505,915.92