Finding the Third Proportional to 21,312 and 34,045.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,312 : 34,045.50 = 34,045.50 : x
2. Step 2: Convert to fraction form
   21,312/34,045.50 = 34,045.50/x
3. Step 3: Cross multiply
   21,312x = 34,045.50 × 34,045.50
4. Step 4: Simplify right side
   21,312x = 1,159,096,070.25
5. Step 5: Solve for x
   x = 1,159,096,070.25/21,312
6. Step 6: Final answer
   x = 54,387.02