Finding the Third Proportional to 21,312 and 35,316

Step by Step Solution

1. Step 1: Write the proportion equation
   21,312 : 35,316 = 35,316 : x
2. Step 2: Convert to fraction form
   21,312/35,316 = 35,316/x
3. Step 3: Cross multiply
   21,312x = 35,316 × 35,316
4. Step 4: Simplify right side
   21,312x = 1,247,219,856
5. Step 5: Solve for x
   x = 1,247,219,856/21,312
6. Step 6: Final answer
   x = 58,521.95