Finding the Third Proportional to 521,558 and 1,117,971

Step by Step Solution

1. Step 1: Write the proportion equation
   521,558 : 1,117,971 = 1,117,971 : x
2. Step 2: Convert to fraction form
   521,558/1,117,971 = 1,117,971/x
3. Step 3: Cross multiply
   521,558x = 1,117,971 × 1,117,971
4. Step 4: Simplify right side
   521,558x = 1,249,859,156,841
5. Step 5: Solve for x
   x = 1,249,859,156,841/521,558
6. Step 6: Final answer
   x = 2,396,395.33