Finding the Third Proportional to 615,672 and 925,290

Step by Step Solution

1. Step 1: Write the proportion equation
   615,672 : 925,290 = 925,290 : x
2. Step 2: Convert to fraction form
   615,672/925,290 = 925,290/x
3. Step 3: Cross multiply
   615,672x = 925,290 × 925,290
4. Step 4: Simplify right side
   615,672x = 856,161,584,100
5. Step 5: Solve for x
   x = 856,161,584,100/615,672
6. Step 6: Final answer
   x = 1,390,613.16