Finding the Third Proportional to 515,064.56 and 757,180.88

Step by Step Solution

1. Step 1: Write the proportion equation
   515,064.56 : 757,180.88 = 757,180.88 : x
2. Step 2: Convert to fraction form
   515,064.56/757,180.88 = 757,180.88/x
3. Step 3: Cross multiply
   515,064.56x = 757,180.88 × 757,180.88
4. Step 4: Simplify right side
   515,064.56x = 573,322,877,465.77
5. Step 5: Solve for x
   x = 573,322,877,465.77/515,064.56
6. Step 6: Final answer
   x = 1,113,108.76