Finding the Third Proportional to 3,670,054 and 8,634,889

Step by Step Solution

1. Step 1: Write the proportion equation
   3,670,054 : 8,634,889 = 8,634,889 : x
2. Step 2: Convert to fraction form
   3,670,054/8,634,889 = 8,634,889/x
3. Step 3: Cross multiply
   3,670,054x = 8,634,889 × 8,634,889
4. Step 4: Simplify right side
   3,670,054x = 74,561,308,042,321
5. Step 5: Solve for x
   x = 74,561,308,042,321/3,670,054
6. Step 6: Final answer
   x = 20,316,133.78