Finding the Third Proportional to 65,423 and 100,699.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,423 : 100,699.50 = 100,699.50 : x
2. Step 2: Convert to fraction form
   65,423/100,699.50 = 100,699.50/x
3. Step 3: Cross multiply
   65,423x = 100,699.50 × 100,699.50
4. Step 4: Simplify right side
   65,423x = 10,140,389,300.25
5. Step 5: Solve for x
   x = 10,140,389,300.25/65,423
6. Step 6: Final answer
   x = 154,997.31