Finding the Third Proportional to 59,920,607.25 and 128,942,141.75

Step by Step Solution

1. Step 1: Write the proportion equation
   59,920,607.25 : 128,942,141.75 = 128,942,141.75 : x
2. Step 2: Convert to fraction form
   59,920,607.25/128,942,141.75 = 128,942,141.75/x
3. Step 3: Cross multiply
   59,920,607.25x = 128,942,141.75 × 128,942,141.75
4. Step 4: Simplify right side
   59,920,607.25x = 16,626,075,919,077,094
5. Step 5: Solve for x
   x = 16,626,075,919,077,094/59,920,607.25
6. Step 6: Final answer
   x = 277,468,414.99