Finding the Third Proportional to 153,803 and 329,475.50

Step by Step Solution

1. Step 1: Write the proportion equation
   153,803 : 329,475.50 = 329,475.50 : x
2. Step 2: Convert to fraction form
   153,803/329,475.50 = 329,475.50/x
3. Step 3: Cross multiply
   153,803x = 329,475.50 × 329,475.50
4. Step 4: Simplify right side
   153,803x = 108,554,105,100.25
5. Step 5: Solve for x
   x = 108,554,105,100.25/153,803
6. Step 6: Final answer
   x = 705,799.66