Finding the Third Proportional to 249,564,308 and 538,588,072

Step by Step Solution

1. Step 1: Write the proportion equation
   249,564,308 : 538,588,072 = 538,588,072 : x
2. Step 2: Convert to fraction form
   249,564,308/538,588,072 = 538,588,072/x
3. Step 3: Cross multiply
   249,564,308x = 538,588,072 × 538,588,072
4. Step 4: Simplify right side
   249,564,308x = 290,077,111,300,677,184
5. Step 5: Solve for x
   x = 290,077,111,300,677,184/249,564,308
6. Step 6: Final answer
   x = 1,162,334,123.92