Finding the Third Proportional to 592,729.50 and 916,920

Step by Step Solution

1. Step 1: Write the proportion equation
   592,729.50 : 916,920 = 916,920 : x
2. Step 2: Convert to fraction form
   592,729.50/916,920 = 916,920/x
3. Step 3: Cross multiply
   592,729.50x = 916,920 × 916,920
4. Step 4: Simplify right side
   592,729.50x = 840,742,286,400
5. Step 5: Solve for x
   x = 840,742,286,400/592,729.50
6. Step 6: Final answer
   x = 1,418,424.91