Finding the Third Proportional to 622,461 and 988,123.50

Step by Step Solution

1. Step 1: Write the proportion equation
   622,461 : 988,123.50 = 988,123.50 : x
2. Step 2: Convert to fraction form
   622,461/988,123.50 = 988,123.50/x
3. Step 3: Cross multiply
   622,461x = 988,123.50 × 988,123.50
4. Step 4: Simplify right side
   622,461x = 976,388,051,252.25
5. Step 5: Solve for x
   x = 976,388,051,252.25/622,461
6. Step 6: Final answer
   x = 1,568,593.13