Finding the Third Proportional to 12,612,978 and 27,581,490

Step by Step Solution

1. Step 1: Write the proportion equation
   12,612,978 : 27,581,490 = 27,581,490 : x
2. Step 2: Convert to fraction form
   12,612,978/27,581,490 = 27,581,490/x
3. Step 3: Cross multiply
   12,612,978x = 27,581,490 × 27,581,490
4. Step 4: Simplify right side
   12,612,978x = 760,738,590,620,100
5. Step 5: Solve for x
   x = 760,738,590,620,100/12,612,978
6. Step 6: Final answer
   x = 60,313,955.25