Finding the Third Proportional to 12,308,980 and 28,493,063

Step by Step Solution

1. Step 1: Write the proportion equation
   12,308,980 : 28,493,063 = 28,493,063 : x
2. Step 2: Convert to fraction form
   12,308,980/28,493,063 = 28,493,063/x
3. Step 3: Cross multiply
   12,308,980x = 28,493,063 × 28,493,063
4. Step 4: Simplify right side
   12,308,980x = 811,854,639,121,969
5. Step 5: Solve for x
   x = 811,854,639,121,969/12,308,980
6. Step 6: Final answer
   x = 65,956,288.75