Finding the Third Proportional to 1,680,276 and 3,687,156

Step by Step Solution

1. Step 1: Write the proportion equation
   1,680,276 : 3,687,156 = 3,687,156 : x
2. Step 2: Convert to fraction form
   1,680,276/3,687,156 = 3,687,156/x
3. Step 3: Cross multiply
   1,680,276x = 3,687,156 × 3,687,156
4. Step 4: Simplify right side
   1,680,276x = 13,595,119,368,336
5. Step 5: Solve for x
   x = 13,595,119,368,336/1,680,276
6. Step 6: Final answer
   x = 8,091,003.72