Finding the Third Proportional to 621,495 and 940,645.50

Step by Step Solution

1. Step 1: Write the proportion equation
   621,495 : 940,645.50 = 940,645.50 : x
2. Step 2: Convert to fraction form
   621,495/940,645.50 = 940,645.50/x
3. Step 3: Cross multiply
   621,495x = 940,645.50 × 940,645.50
4. Step 4: Simplify right side
   621,495x = 884,813,956,670.25
5. Step 5: Solve for x
   x = 884,813,956,670.25/621,495
6. Step 6: Final answer
   x = 1,423,686.36