Finding the Third Proportional to 438,639 and 942,547.50

Step by Step Solution

1. Step 1: Write the proportion equation
   438,639 : 942,547.50 = 942,547.50 : x
2. Step 2: Convert to fraction form
   438,639/942,547.50 = 942,547.50/x
3. Step 3: Cross multiply
   438,639x = 942,547.50 × 942,547.50
4. Step 4: Simplify right side
   438,639x = 888,395,789,756.25
5. Step 5: Solve for x
   x = 888,395,789,756.25/438,639
6. Step 6: Final answer
   x = 2,025,346.10