Finding the Third Proportional to 58,947 and 90,141

Step by Step Solution

1. Step 1: Write the proportion equation
   58,947 : 90,141 = 90,141 : x
2. Step 2: Convert to fraction form
   58,947/90,141 = 90,141/x
3. Step 3: Cross multiply
   58,947x = 90,141 × 90,141
4. Step 4: Simplify right side
   58,947x = 8,125,399,881
5. Step 5: Solve for x
   x = 8,125,399,881/58,947
6. Step 6: Final answer
   x = 137,842.47