Finding the Third Proportional to 138,113 and 290,157.25

Step by Step Solution

1. Step 1: Write the proportion equation
   138,113 : 290,157.25 = 290,157.25 : x
2. Step 2: Convert to fraction form
   138,113/290,157.25 = 290,157.25/x
3. Step 3: Cross multiply
   138,113x = 290,157.25 × 290,157.25
4. Step 4: Simplify right side
   138,113x = 84,191,229,727.56
5. Step 5: Solve for x
   x = 84,191,229,727.56/138,113
6. Step 6: Final answer
   x = 609,582.22