Finding the Third Proportional to 1,553,478 and 3,334,476

Step by Step Solution

1. Step 1: Write the proportion equation
   1,553,478 : 3,334,476 = 3,334,476 : x
2. Step 2: Convert to fraction form
   1,553,478/3,334,476 = 3,334,476/x
3. Step 3: Cross multiply
   1,553,478x = 3,334,476 × 3,334,476
4. Step 4: Simplify right side
   1,553,478x = 11,118,730,194,576
5. Step 5: Solve for x
   x = 11,118,730,194,576/1,553,478
6. Step 6: Final answer
   x = 7,157,314.23