Finding the Third Proportional to 82,243,642.50 and 180,627,443.50

Step by Step Solution

1. Step 1: Write the proportion equation
   82,243,642.50 : 180,627,443.50 = 180,627,443.50 : x
2. Step 2: Convert to fraction form
   82,243,642.50/180,627,443.50 = 180,627,443.50/x
3. Step 3: Cross multiply
   82,243,642.50x = 180,627,443.50 × 180,627,443.50
4. Step 4: Simplify right side
   82,243,642.50x = 32,626,273,345,345,692
5. Step 5: Solve for x
   x = 32,626,273,345,345,692/82,243,642.50
6. Step 6: Final answer
   x = 396,702,679.42