Finding the Third Proportional to 59,574,768 and 128,559,144

Step by Step Solution

1. Step 1: Write the proportion equation
   59,574,768 : 128,559,144 = 128,559,144 : x
2. Step 2: Convert to fraction form
   59,574,768/128,559,144 = 128,559,144/x
3. Step 3: Cross multiply
   59,574,768x = 128,559,144 × 128,559,144
4. Step 4: Simplify right side
   59,574,768x = 16,527,453,506,012,736
5. Step 5: Solve for x
   x = 16,527,453,506,012,736/59,574,768
6. Step 6: Final answer
   x = 277,423,715.79