Finding the Third Proportional to 405,586 and 938,901.50

Step by Step Solution

1. Step 1: Write the proportion equation
   405,586 : 938,901.50 = 938,901.50 : x
2. Step 2: Convert to fraction form
   405,586/938,901.50 = 938,901.50/x
3. Step 3: Cross multiply
   405,586x = 938,901.50 × 938,901.50
4. Step 4: Simplify right side
   405,586x = 881,536,026,702.25
5. Step 5: Solve for x
   x = 881,536,026,702.25/405,586
6. Step 6: Final answer
   x = 2,173,487.32