Finding the Third Proportional to 12,619,776 and 18,923,520

Step by Step Solution

1. Step 1: Write the proportion equation
   12,619,776 : 18,923,520 = 18,923,520 : x
2. Step 2: Convert to fraction form
   12,619,776/18,923,520 = 18,923,520/x
3. Step 3: Cross multiply
   12,619,776x = 18,923,520 × 18,923,520
4. Step 4: Simplify right side
   12,619,776x = 358,099,609,190,400
5. Step 5: Solve for x
   x = 358,099,609,190,400/12,619,776
6. Step 6: Final answer
   x = 28,376,066.99