Finding the Third Proportional to 70,696.13 and 148,663.69

Step by Step Solution

1. Step 1: Write the proportion equation
   70,696.13 : 148,663.69 = 148,663.69 : x
2. Step 2: Convert to fraction form
   70,696.13/148,663.69 = 148,663.69/x
3. Step 3: Cross multiply
   70,696.13x = 148,663.69 × 148,663.69
4. Step 4: Simplify right side
   70,696.13x = 22,100,891,981.10
5. Step 5: Solve for x
   x = 22,100,891,981.10/70,696.13
6. Step 6: Final answer
   x = 312,618.15