Finding the Third Proportional to 340,051.50 and 510,131.25

Step by Step Solution

1. Step 1: Write the proportion equation
   340,051.50 : 510,131.25 = 510,131.25 : x
2. Step 2: Convert to fraction form
   340,051.50/510,131.25 = 510,131.25/x
3. Step 3: Cross multiply
   340,051.50x = 510,131.25 × 510,131.25
4. Step 4: Simplify right side
   340,051.50x = 260,233,892,226.56
5. Step 5: Solve for x
   x = 260,233,892,226.56/340,051.50
6. Step 6: Final answer
   x = 765,277.88