Finding the Third Proportional to 12,782,046 and 17,978,800.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,782,046 : 17,978,800.50 = 17,978,800.50 : x
2. Step 2: Convert to fraction form
   12,782,046/17,978,800.50 = 17,978,800.50/x
3. Step 3: Cross multiply
   12,782,046x = 17,978,800.50 × 17,978,800.50
4. Step 4: Simplify right side
   12,782,046x = 323,237,267,418,800.25
5. Step 5: Solve for x
   x = 323,237,267,418,800.25/12,782,046
6. Step 6: Final answer
   x = 25,288,382.42