Finding the Third Proportional to 3,670,078 and 8,634,970

Step by Step Solution

1. Step 1: Write the proportion equation
   3,670,078 : 8,634,970 = 8,634,970 : x
2. Step 2: Convert to fraction form
   3,670,078/8,634,970 = 8,634,970/x
3. Step 3: Cross multiply
   3,670,078x = 8,634,970 × 8,634,970
4. Step 4: Simplify right side
   3,670,078x = 74,562,706,900,900
5. Step 5: Solve for x
   x = 74,562,706,900,900/3,670,078
6. Step 6: Final answer
   x = 20,316,382.08