Finding the Third Proportional to 2,661,899,499 and 4,138,010,806.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,661,899,499 : 4,138,010,806.50 = 4,138,010,806.50 : x
2. Step 2: Convert to fraction form
   2,661,899,499/4,138,010,806.50 = 4,138,010,806.50/x
3. Step 3: Cross multiply
   2,661,899,499x = 4,138,010,806.50 × 4,138,010,806.50
4. Step 4: Simplify right side
   2,661,899,499x = 17,123,133,434,710,779,904
5. Step 5: Solve for x
   x = 17,123,133,434,710,779,904/2,661,899,499
6. Step 6: Final answer
   x = 6,432,674,652.50