Finding the Third Proportional to 390,532 and 846,188

Step by Step Solution

1. Step 1: Write the proportion equation
   390,532 : 846,188 = 846,188 : x
2. Step 2: Convert to fraction form
   390,532/846,188 = 846,188/x
3. Step 3: Cross multiply
   390,532x = 846,188 × 846,188
4. Step 4: Simplify right side
   390,532x = 716,034,131,344
5. Step 5: Solve for x
   x = 716,034,131,344/390,532
6. Step 6: Final answer
   x = 1,833,483.89