Finding the Third Proportional to 7,874,546 and 12,147,611

Step by Step Solution

1. Step 1: Write the proportion equation
   7,874,546 : 12,147,611 = 12,147,611 : x
2. Step 2: Convert to fraction form
   7,874,546/12,147,611 = 12,147,611/x
3. Step 3: Cross multiply
   7,874,546x = 12,147,611 × 12,147,611
4. Step 4: Simplify right side
   7,874,546x = 147,564,453,007,321
5. Step 5: Solve for x
   x = 147,564,453,007,321/7,874,546
6. Step 6: Final answer
   x = 18,739,423.58