Finding the Third Proportional to 503,445 and 762,479.25

Step by Step Solution

1. Step 1: Write the proportion equation
   503,445 : 762,479.25 = 762,479.25 : x
2. Step 2: Convert to fraction form
   503,445/762,479.25 = 762,479.25/x
3. Step 3: Cross multiply
   503,445x = 762,479.25 × 762,479.25
4. Step 4: Simplify right side
   503,445x = 581,374,606,680.56
5. Step 5: Solve for x
   x = 581,374,606,680.56/503,445
6. Step 6: Final answer
   x = 1,154,792.69