Finding the Third Proportional to 59,574,778 and 128,559,164

Step by Step Solution

1. Step 1: Write the proportion equation
   59,574,778 : 128,559,164 = 128,559,164 : x
2. Step 2: Convert to fraction form
   59,574,778/128,559,164 = 128,559,164/x
3. Step 3: Cross multiply
   59,574,778x = 128,559,164 × 128,559,164
4. Step 4: Simplify right side
   59,574,778x = 16,527,458,648,378,896
5. Step 5: Solve for x
   x = 16,527,458,648,378,896/59,574,778
6. Step 6: Final answer
   x = 277,423,755.54