Finding the Third Proportional to 153,903 and 231,300.50

Step by Step Solution

1. Step 1: Write the proportion equation
   153,903 : 231,300.50 = 231,300.50 : x
2. Step 2: Convert to fraction form
   153,903/231,300.50 = 231,300.50/x
3. Step 3: Cross multiply
   153,903x = 231,300.50 × 231,300.50
4. Step 4: Simplify right side
   153,903x = 53,499,921,300.25
5. Step 5: Solve for x
   x = 53,499,921,300.25/153,903
6. Step 6: Final answer
   x = 347,621.04