Finding the Third Proportional to 3,556,146 and 7,680,892.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,556,146 : 7,680,892.50 = 7,680,892.50 : x
2. Step 2: Convert to fraction form
   3,556,146/7,680,892.50 = 7,680,892.50/x
3. Step 3: Cross multiply
   3,556,146x = 7,680,892.50 × 7,680,892.50
4. Step 4: Simplify right side
   3,556,146x = 58,996,109,596,556.25
5. Step 5: Solve for x
   x = 58,996,109,596,556.25/3,556,146
6. Step 6: Final answer
   x = 16,589,900.86