Finding the Third Proportional to 77,938.45 and 168,038.72

Step by Step Solution

1. Step 1: Write the proportion equation
   77,938.45 : 168,038.72 = 168,038.72 : x
2. Step 2: Convert to fraction form
   77,938.45/168,038.72 = 168,038.72/x
3. Step 3: Cross multiply
   77,938.45x = 168,038.72 × 168,038.72
4. Step 4: Simplify right side
   77,938.45x = 28,237,010,999.14
5. Step 5: Solve for x
   x = 28,237,010,999.14/77,938.45
6. Step 6: Final answer
   x = 362,298.84