Finding the Third Proportional to 2,645,840.53 and 5,609,608.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,645,840.53 : 5,609,608.59 = 5,609,608.59 : x
2. Step 2: Convert to fraction form
   2,645,840.53/5,609,608.59 = 5,609,608.59/x
3. Step 3: Cross multiply
   2,645,840.53x = 5,609,608.59 × 5,609,608.59
4. Step 4: Simplify right side
   2,645,840.53x = 31,467,708,575,073.85
5. Step 5: Solve for x
   x = 31,467,708,575,073.85/2,645,840.53
6. Step 6: Final answer
   x = 11,893,274.82