Finding the Third Proportional to 352,803 and 751,123.50

Step by Step Solution

1. Step 1: Write the proportion equation
   352,803 : 751,123.50 = 751,123.50 : x
2. Step 2: Convert to fraction form
   352,803/751,123.50 = 751,123.50/x
3. Step 3: Cross multiply
   352,803x = 751,123.50 × 751,123.50
4. Step 4: Simplify right side
   352,803x = 564,186,512,252.25
5. Step 5: Solve for x
   x = 564,186,512,252.25/352,803
6. Step 6: Final answer
   x = 1,599,154.52