Finding the Third Proportional to 58,213,957.50 and 128,240,003.25

Step by Step Solution

1. Step 1: Write the proportion equation
   58,213,957.50 : 128,240,003.25 = 128,240,003.25 : x
2. Step 2: Convert to fraction form
   58,213,957.50/128,240,003.25 = 128,240,003.25/x
3. Step 3: Cross multiply
   58,213,957.50x = 128,240,003.25 × 128,240,003.25
4. Step 4: Simplify right side
   58,213,957.50x = 16,445,498,433,560,010
5. Step 5: Solve for x
   x = 16,445,498,433,560,010/58,213,957.50
6. Step 6: Final answer
   x = 282,500,952.35