Finding the Third Proportional to 65,312 and 141,488

Step by Step Solution

1. Step 1: Write the proportion equation
   65,312 : 141,488 = 141,488 : x
2. Step 2: Convert to fraction form
   65,312/141,488 = 141,488/x
3. Step 3: Cross multiply
   65,312x = 141,488 × 141,488
4. Step 4: Simplify right side
   65,312x = 20,018,854,144
5. Step 5: Solve for x
   x = 20,018,854,144/65,312
6. Step 6: Final answer
   x = 306,511.12