Finding the Third Proportional to 8,077,034,978 and 12,407,314,672

Step by Step Solution

1. Step 1: Write the proportion equation
   8,077,034,978 : 12,407,314,672 = 12,407,314,672 : x
2. Step 2: Convert to fraction form
   8,077,034,978/12,407,314,672 = 12,407,314,672/x
3. Step 3: Cross multiply
   8,077,034,978x = 12,407,314,672 × 12,407,314,672
4. Step 4: Simplify right side
   8,077,034,978x = 153,941,457,370,026,475,520
5. Step 5: Solve for x
   x = 153,941,457,370,026,475,520/8,077,034,978
6. Step 6: Final answer
   x = 19,059,154,478.01