Finding the Third Proportional to 238,149 and 509,051.25

Step by Step Solution

1. Step 1: Write the proportion equation
   238,149 : 509,051.25 = 509,051.25 : x
2. Step 2: Convert to fraction form
   238,149/509,051.25 = 509,051.25/x
3. Step 3: Cross multiply
   238,149x = 509,051.25 × 509,051.25
4. Step 4: Simplify right side
   238,149x = 259,133,175,126.56
5. Step 5: Solve for x
   x = 259,133,175,126.56/238,149
6. Step 6: Final answer
   x = 1,088,113.64