Finding the Third Proportional to 16,492,884.75 and 21,688,459.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,492,884.75 : 21,688,459.50 = 21,688,459.50 : x
2. Step 2: Convert to fraction form
   16,492,884.75/21,688,459.50 = 21,688,459.50/x
3. Step 3: Cross multiply
   16,492,884.75x = 21,688,459.50 × 21,688,459.50
4. Step 4: Simplify right side
   16,492,884.75x = 470,389,275,483,140.25
5. Step 5: Solve for x
   x = 470,389,275,483,140.25/16,492,884.75
6. Step 6: Final answer
   x = 28,520,739.86