Finding the Third Proportional to 12,791,085 and 19,680,662.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,791,085 : 19,680,662.25 = 19,680,662.25 : x
2. Step 2: Convert to fraction form
   12,791,085/19,680,662.25 = 19,680,662.25/x
3. Step 3: Cross multiply
   12,791,085x = 19,680,662.25 × 19,680,662.25
4. Step 4: Simplify right side
   12,791,085x = 387,328,466,598,575.06
5. Step 5: Solve for x
   x = 387,328,466,598,575.06/12,791,085
6. Step 6: Final answer
   x = 30,281,126.78