Finding the Third Proportional to 303,930 and 661,372.88

Step by Step Solution

1. Step 1: Write the proportion equation
   303,930 : 661,372.88 = 661,372.88 : x
2. Step 2: Convert to fraction form
   303,930/661,372.88 = 661,372.88/x
3. Step 3: Cross multiply
   303,930x = 661,372.88 × 661,372.88
4. Step 4: Simplify right side
   303,930x = 437,414,079,785.77
5. Step 5: Solve for x
   x = 437,414,079,785.77/303,930
6. Step 6: Final answer
   x = 1,439,193.50