Finding the Third Proportional to 78,323,316 and 169,663,872

Step by Step Solution

1. Step 1: Write the proportion equation
   78,323,316 : 169,663,872 = 169,663,872 : x
2. Step 2: Convert to fraction form
   78,323,316/169,663,872 = 169,663,872/x
3. Step 3: Cross multiply
   78,323,316x = 169,663,872 × 169,663,872
4. Step 4: Simplify right side
   78,323,316x = 28,785,829,462,032,384
5. Step 5: Solve for x
   x = 28,785,829,462,032,384/78,323,316
6. Step 6: Final answer
   x = 367,525,673.48