Finding the Third Proportional to 91,554 and 141,688

Step by Step Solution

1. Step 1: Write the proportion equation
   91,554 : 141,688 = 141,688 : x
2. Step 2: Convert to fraction form
   91,554/141,688 = 141,688/x
3. Step 3: Cross multiply
   91,554x = 141,688 × 141,688
4. Step 4: Simplify right side
   91,554x = 20,075,489,344
5. Step 5: Solve for x
   x = 20,075,489,344/91,554
6. Step 6: Final answer
   x = 219,274.85