Finding the Third Proportional to 11,648,112 and 18,085,611

Step by Step Solution

1. Step 1: Write the proportion equation
   11,648,112 : 18,085,611 = 18,085,611 : x
2. Step 2: Convert to fraction form
   11,648,112/18,085,611 = 18,085,611/x
3. Step 3: Cross multiply
   11,648,112x = 18,085,611 × 18,085,611
4. Step 4: Simplify right side
   11,648,112x = 327,089,325,243,321
5. Step 5: Solve for x
   x = 327,089,325,243,321/11,648,112
6. Step 6: Final answer
   x = 28,080,887.72