Finding the Third Proportional to 78,837,417 and 168,570,090

Step by Step Solution

1. Step 1: Write the proportion equation
   78,837,417 : 168,570,090 = 168,570,090 : x
2. Step 2: Convert to fraction form
   78,837,417/168,570,090 = 168,570,090/x
3. Step 3: Cross multiply
   78,837,417x = 168,570,090 × 168,570,090
4. Step 4: Simplify right side
   78,837,417x = 28,415,875,242,608,100
5. Step 5: Solve for x
   x = 28,415,875,242,608,100/78,837,417
6. Step 6: Final answer
   x = 360,436,406.01