Finding the Third Proportional to 1,680,278 and 3,687,160

Step by Step Solution

1. Step 1: Write the proportion equation
   1,680,278 : 3,687,160 = 3,687,160 : x
2. Step 2: Convert to fraction form
   1,680,278/3,687,160 = 3,687,160/x
3. Step 3: Cross multiply
   1,680,278x = 3,687,160 × 3,687,160
4. Step 4: Simplify right side
   1,680,278x = 13,595,148,865,600
5. Step 5: Solve for x
   x = 13,595,148,865,600/1,680,278
6. Step 6: Final answer
   x = 8,091,011.65