Finding the Third Proportional to 1,672,818 and 3,561,420

Step by Step Solution

1. Step 1: Write the proportion equation
   1,672,818 : 3,561,420 = 3,561,420 : x
2. Step 2: Convert to fraction form
   1,672,818/3,561,420 = 3,561,420/x
3. Step 3: Cross multiply
   1,672,818x = 3,561,420 × 3,561,420
4. Step 4: Simplify right side
   1,672,818x = 12,683,712,416,400
5. Step 5: Solve for x
   x = 12,683,712,416,400/1,672,818
6. Step 6: Final answer
   x = 7,582,242.91