Finding the Third Proportional to 3,973,574 and 8,582,380

Step by Step Solution

1. Step 1: Write the proportion equation
   3,973,574 : 8,582,380 = 8,582,380 : x
2. Step 2: Convert to fraction form
   3,973,574/8,582,380 = 8,582,380/x
3. Step 3: Cross multiply
   3,973,574x = 8,582,380 × 8,582,380
4. Step 4: Simplify right side
   3,973,574x = 73,657,246,464,400
5. Step 5: Solve for x
   x = 73,657,246,464,400/3,973,574
6. Step 6: Final answer
   x = 18,536,774.82