Finding the Third Proportional to 615,105.50 and 1,331,298.50

Step by Step Solution

1. Step 1: Write the proportion equation
   615,105.50 : 1,331,298.50 = 1,331,298.50 : x
2. Step 2: Convert to fraction form
   615,105.50/1,331,298.50 = 1,331,298.50/x
3. Step 3: Cross multiply
   615,105.50x = 1,331,298.50 × 1,331,298.50
4. Step 4: Simplify right side
   615,105.50x = 1,772,355,696,102.25
5. Step 5: Solve for x
   x = 1,772,355,696,102.25/615,105.50
6. Step 6: Final answer
   x = 2,881,384.89