Finding the Third Proportional to 17,690,440 and 38,582,672

Step by Step Solution

1. Step 1: Write the proportion equation
   17,690,440 : 38,582,672 = 38,582,672 : x
2. Step 2: Convert to fraction form
   17,690,440/38,582,672 = 38,582,672/x
3. Step 3: Cross multiply
   17,690,440x = 38,582,672 × 38,582,672
4. Step 4: Simplify right side
   17,690,440x = 1,488,622,578,659,584
5. Step 5: Solve for x
   x = 1,488,622,578,659,584/17,690,440
6. Step 6: Final answer
   x = 84,148,420.20