Finding the Third Proportional to 243,059 and 380,419.50

Step by Step Solution

1. Step 1: Write the proportion equation
   243,059 : 380,419.50 = 380,419.50 : x
2. Step 2: Convert to fraction form
   243,059/380,419.50 = 380,419.50/x
3. Step 3: Cross multiply
   243,059x = 380,419.50 × 380,419.50
4. Step 4: Simplify right side
   243,059x = 144,718,995,980.25
5. Step 5: Solve for x
   x = 144,718,995,980.25/243,059
6. Step 6: Final answer
   x = 595,406.86