Finding the Third Proportional to 5,522,021 and 12,897,166.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,522,021 : 12,897,166.50 = 12,897,166.50 : x
2. Step 2: Convert to fraction form
   5,522,021/12,897,166.50 = 12,897,166.50/x
3. Step 3: Cross multiply
   5,522,021x = 12,897,166.50 × 12,897,166.50
4. Step 4: Simplify right side
   5,522,021x = 166,336,903,728,722.25
5. Step 5: Solve for x
   x = 166,336,903,728,722.25/5,522,021
6. Step 6: Final answer
   x = 30,122,468.52