Finding the Third Proportional to 2,658,172 and 5,664,312

Step by Step Solution

1. Step 1: Write the proportion equation
   2,658,172 : 5,664,312 = 5,664,312 : x
2. Step 2: Convert to fraction form
   2,658,172/5,664,312 = 5,664,312/x
3. Step 3: Cross multiply
   2,658,172x = 5,664,312 × 5,664,312
4. Step 4: Simplify right side
   2,658,172x = 32,084,430,433,344
5. Step 5: Solve for x
   x = 32,084,430,433,344/2,658,172
6. Step 6: Final answer
   x = 12,070,110.75