Finding the Third Proportional to 7,872,233 and 12,854,647.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,872,233 : 12,854,647.50 = 12,854,647.50 : x
2. Step 2: Convert to fraction form
   7,872,233/12,854,647.50 = 12,854,647.50/x
3. Step 3: Cross multiply
   7,872,233x = 12,854,647.50 × 12,854,647.50
4. Step 4: Simplify right side
   7,872,233x = 165,241,962,349,256.25
5. Step 5: Solve for x
   x = 165,241,962,349,256.25/7,872,233
6. Step 6: Final answer
   x = 20,990,481.65