Finding the Third Proportional to 4,089,556 and 8,602,174

Step by Step Solution

1. Step 1: Write the proportion equation
   4,089,556 : 8,602,174 = 8,602,174 : x
2. Step 2: Convert to fraction form
   4,089,556/8,602,174 = 8,602,174/x
3. Step 3: Cross multiply
   4,089,556x = 8,602,174 × 8,602,174
4. Step 4: Simplify right side
   4,089,556x = 73,997,397,526,276
5. Step 5: Solve for x
   x = 73,997,397,526,276/4,089,556
6. Step 6: Final answer
   x = 18,094,237.50