Finding the Third Proportional to 49,991.63 and 70,309.69

Step by Step Solution

1. Step 1: Write the proportion equation
   49,991.63 : 70,309.69 = 70,309.69 : x
2. Step 2: Convert to fraction form
   49,991.63/70,309.69 = 70,309.69/x
3. Step 3: Cross multiply
   49,991.63x = 70,309.69 × 70,309.69
4. Step 4: Simplify right side
   49,991.63x = 4,943,452,156.35
5. Step 5: Solve for x
   x = 4,943,452,156.35/49,991.63
6. Step 6: Final answer
   x = 98,885.61