Finding the Third Proportional to 624,835.50 and 1,293,978

Step by Step Solution

1. Step 1: Write the proportion equation
   624,835.50 : 1,293,978 = 1,293,978 : x
2. Step 2: Convert to fraction form
   624,835.50/1,293,978 = 1,293,978/x
3. Step 3: Cross multiply
   624,835.50x = 1,293,978 × 1,293,978
4. Step 4: Simplify right side
   624,835.50x = 1,674,379,064,484
5. Step 5: Solve for x
   x = 1,674,379,064,484/624,835.50
6. Step 6: Final answer
   x = 2,679,711.80