Finding the Third Proportional to 13,122,370 and 17,665,215

Step by Step Solution

1. Step 1: Write the proportion equation
   13,122,370 : 17,665,215 = 17,665,215 : x
2. Step 2: Convert to fraction form
   13,122,370/17,665,215 = 17,665,215/x
3. Step 3: Cross multiply
   13,122,370x = 17,665,215 × 17,665,215
4. Step 4: Simplify right side
   13,122,370x = 312,059,820,996,225
5. Step 5: Solve for x
   x = 312,059,820,996,225/13,122,370
6. Step 6: Final answer
   x = 23,780,751.57