Finding the Third Proportional to 438,619.50 and 942,507

Step by Step Solution

1. Step 1: Write the proportion equation
   438,619.50 : 942,507 = 942,507 : x
2. Step 2: Convert to fraction form
   438,619.50/942,507 = 942,507/x
3. Step 3: Cross multiply
   438,619.50x = 942,507 × 942,507
4. Step 4: Simplify right side
   438,619.50x = 888,319,445,049
5. Step 5: Solve for x
   x = 888,319,445,049/438,619.50
6. Step 6: Final answer
   x = 2,025,262.09