Finding the Third Proportional to 4,210,374 and 9,260,556

Step by Step Solution

1. Step 1: Write the proportion equation
   4,210,374 : 9,260,556 = 9,260,556 : x
2. Step 2: Convert to fraction form
   4,210,374/9,260,556 = 9,260,556/x
3. Step 3: Cross multiply
   4,210,374x = 9,260,556 × 9,260,556
4. Step 4: Simplify right side
   4,210,374x = 85,757,897,429,136
5. Step 5: Solve for x
   x = 85,757,897,429,136/4,210,374
6. Step 6: Final answer
   x = 20,368,237.46