Finding the Third Proportional to 3,912,094 and 8,402,648

Step by Step Solution

1. Step 1: Write the proportion equation
   3,912,094 : 8,402,648 = 8,402,648 : x
2. Step 2: Convert to fraction form
   3,912,094/8,402,648 = 8,402,648/x
3. Step 3: Cross multiply
   3,912,094x = 8,402,648 × 8,402,648
4. Step 4: Simplify right side
   3,912,094x = 70,604,493,411,904
5. Step 5: Solve for x
   x = 70,604,493,411,904/3,912,094
6. Step 6: Final answer
   x = 18,047,749.72