Finding the Third Proportional to 129,075.94 and 279,598.69

Step by Step Solution

1. Step 1: Write the proportion equation
   129,075.94 : 279,598.69 = 279,598.69 : x
2. Step 2: Convert to fraction form
   129,075.94/279,598.69 = 279,598.69/x
3. Step 3: Cross multiply
   129,075.94x = 279,598.69 × 279,598.69
4. Step 4: Simplify right side
   129,075.94x = 78,175,426,051.72
5. Step 5: Solve for x
   x = 78,175,426,051.72/129,075.94
6. Step 6: Final answer
   x = 605,654.53