Finding the Third Proportional to 291,132 and 633,521.25

Step by Step Solution

1. Step 1: Write the proportion equation
   291,132 : 633,521.25 = 633,521.25 : x
2. Step 2: Convert to fraction form
   291,132/633,521.25 = 633,521.25/x
3. Step 3: Cross multiply
   291,132x = 633,521.25 × 633,521.25
4. Step 4: Simplify right side
   291,132x = 401,349,174,201.56
5. Step 5: Solve for x
   x = 401,349,174,201.56/291,132
6. Step 6: Final answer
   x = 1,378,581.45