Finding the Third Proportional to 59,574,769.25 and 128,559,146.50

Step by Step Solution

1. Step 1: Write the proportion equation
   59,574,769.25 : 128,559,146.50 = 128,559,146.50 : x
2. Step 2: Convert to fraction form
   59,574,769.25/128,559,146.50 = 128,559,146.50/x
3. Step 3: Cross multiply
   59,574,769.25x = 128,559,146.50 × 128,559,146.50
4. Step 4: Simplify right side
   59,574,769.25x = 16,527,454,148,808,462
5. Step 5: Solve for x
   x = 16,527,454,148,808,462/59,574,769.25
6. Step 6: Final answer
   x = 277,423,720.76