Finding the Third Proportional to 2,615,307.50 and 5,643,470

Step by Step Solution

1. Step 1: Write the proportion equation
   2,615,307.50 : 5,643,470 = 5,643,470 : x
2. Step 2: Convert to fraction form
   2,615,307.50/5,643,470 = 5,643,470/x
3. Step 3: Cross multiply
   2,615,307.50x = 5,643,470 × 5,643,470
4. Step 4: Simplify right side
   2,615,307.50x = 31,848,753,640,900
5. Step 5: Solve for x
   x = 31,848,753,640,900/2,615,307.50
6. Step 6: Final answer
   x = 12,177,823.69