Finding the Third Proportional to 12,078,654 and 18,293,896

Step by Step Solution

1. Step 1: Write the proportion equation
   12,078,654 : 18,293,896 = 18,293,896 : x
2. Step 2: Convert to fraction form
   12,078,654/18,293,896 = 18,293,896/x
3. Step 3: Cross multiply
   12,078,654x = 18,293,896 × 18,293,896
4. Step 4: Simplify right side
   12,078,654x = 334,666,630,858,816
5. Step 5: Solve for x
   x = 334,666,630,858,816/12,078,654
6. Step 6: Final answer
   x = 27,707,278.55