Finding the Third Proportional to 20,979,432 and 31,662,132

Step by Step Solution

1. Step 1: Write the proportion equation
   20,979,432 : 31,662,132 = 31,662,132 : x
2. Step 2: Convert to fraction form
   20,979,432/31,662,132 = 31,662,132/x
3. Step 3: Cross multiply
   20,979,432x = 31,662,132 × 31,662,132
4. Step 4: Simplify right side
   20,979,432x = 1,002,490,602,785,424
5. Step 5: Solve for x
   x = 1,002,490,602,785,424/20,979,432
6. Step 6: Final answer
   x = 47,784,449.21