Finding the Third Proportional to 1,621,500 and 3,554,328

Step by Step Solution

1. Step 1: Write the proportion equation
   1,621,500 : 3,554,328 = 3,554,328 : x
2. Step 2: Convert to fraction form
   1,621,500/3,554,328 = 3,554,328/x
3. Step 3: Cross multiply
   1,621,500x = 3,554,328 × 3,554,328
4. Step 4: Simplify right side
   1,621,500x = 12,633,247,531,584
5. Step 5: Solve for x
   x = 12,633,247,531,584/1,621,500
6. Step 6: Final answer
   x = 7,791,086.98