Finding the Third Proportional to 45,402 and 70,470

Step by Step Solution

1. Step 1: Write the proportion equation
   45,402 : 70,470 = 70,470 : x
2. Step 2: Convert to fraction form
   45,402/70,470 = 70,470/x
3. Step 3: Cross multiply
   45,402x = 70,470 × 70,470
4. Step 4: Simplify right side
   45,402x = 4,966,020,900
5. Step 5: Solve for x
   x = 4,966,020,900/45,402
6. Step 6: Final answer
   x = 109,378.90