Finding the Third Proportional to 78,323,272 and 169,663,784

Step by Step Solution

1. Step 1: Write the proportion equation
   78,323,272 : 169,663,784 = 169,663,784 : x
2. Step 2: Convert to fraction form
   78,323,272/169,663,784 = 169,663,784/x
3. Step 3: Cross multiply
   78,323,272x = 169,663,784 × 169,663,784
4. Step 4: Simplify right side
   78,323,272x = 28,785,799,601,198,656
5. Step 5: Solve for x
   x = 28,785,799,601,198,656/78,323,272
6. Step 6: Final answer
   x = 367,525,498.69