Finding the Third Proportional to 12,791,158.88 and 19,680,775.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,791,158.88 : 19,680,775.88 = 19,680,775.88 : x
2. Step 2: Convert to fraction form
   12,791,158.88/19,680,775.88 = 19,680,775.88/x
3. Step 3: Cross multiply
   12,791,158.88x = 19,680,775.88 × 19,680,775.88
4. Step 4: Simplify right side
   12,791,158.88x = 387,332,939,041,982
5. Step 5: Solve for x
   x = 387,332,939,041,982/12,791,158.88
6. Step 6: Final answer
   x = 30,281,301.55