Finding the Third Proportional to 1,620,447 and 3,532,476

Step by Step Solution

1. Step 1: Write the proportion equation
   1,620,447 : 3,532,476 = 3,532,476 : x
2. Step 2: Convert to fraction form
   1,620,447/3,532,476 = 3,532,476/x
3. Step 3: Cross multiply
   1,620,447x = 3,532,476 × 3,532,476
4. Step 4: Simplify right side
   1,620,447x = 12,478,386,690,576
5. Step 5: Solve for x
   x = 12,478,386,690,576/1,620,447
6. Step 6: Final answer
   x = 7,700,583.04