Finding the Third Proportional to 157,770 and 238,288.50

Step by Step Solution

1. Step 1: Write the proportion equation
   157,770 : 238,288.50 = 238,288.50 : x
2. Step 2: Convert to fraction form
   157,770/238,288.50 = 238,288.50/x
3. Step 3: Cross multiply
   157,770x = 238,288.50 × 238,288.50
4. Step 4: Simplify right side
   157,770x = 56,781,409,232.25
5. Step 5: Solve for x
   x = 56,781,409,232.25/157,770
6. Step 6: Final answer
   x = 359,899.91