Finding the Third Proportional to 3,663,817.31 and 7,814,561.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,663,817.31 : 7,814,561.06 = 7,814,561.06 : x
2. Step 2: Convert to fraction form
   3,663,817.31/7,814,561.06 = 7,814,561.06/x
3. Step 3: Cross multiply
   3,663,817.31x = 7,814,561.06 × 7,814,561.06
4. Step 4: Simplify right side
   3,663,817.31x = 61,067,364,599,541.12
5. Step 5: Solve for x
   x = 61,067,364,599,541.12/3,663,817.31
6. Step 6: Final answer
   x = 16,667,688.20