Finding the Third Proportional to 156,978 and 240,075

Step by Step Solution

1. Step 1: Write the proportion equation
   156,978 : 240,075 = 240,075 : x
2. Step 2: Convert to fraction form
   156,978/240,075 = 240,075/x
3. Step 3: Cross multiply
   156,978x = 240,075 × 240,075
4. Step 4: Simplify right side
   156,978x = 57,636,005,625
5. Step 5: Solve for x
   x = 57,636,005,625/156,978
6. Step 6: Final answer
   x = 367,159.77