Finding the Third Proportional to 5,874,390 and 8,980,434

Step by Step Solution

1. Step 1: Write the proportion equation
   5,874,390 : 8,980,434 = 8,980,434 : x
2. Step 2: Convert to fraction form
   5,874,390/8,980,434 = 8,980,434/x
3. Step 3: Cross multiply
   5,874,390x = 8,980,434 × 8,980,434
4. Step 4: Simplify right side
   5,874,390x = 80,648,194,828,356
5. Step 5: Solve for x
   x = 80,648,194,828,356/5,874,390
6. Step 6: Final answer
   x = 13,728,777.77