Finding the Third Proportional to 640,233 and 1,371,748.50

Step by Step Solution

1. Step 1: Write the proportion equation
   640,233 : 1,371,748.50 = 1,371,748.50 : x
2. Step 2: Convert to fraction form
   640,233/1,371,748.50 = 1,371,748.50/x
3. Step 3: Cross multiply
   640,233x = 1,371,748.50 × 1,371,748.50
4. Step 4: Simplify right side
   640,233x = 1,881,693,947,252.25
5. Step 5: Solve for x
   x = 1,881,693,947,252.25/640,233
6. Step 6: Final answer
   x = 2,939,076.78